(財)神奈川科学技術アカデミー・極限表面反応プロジェクト・研究員

1999.4 - 2003.9

日本学術振興会・特別研究員・DC2 研究員(研究場所：東京工業大学)

1998.4 - 1999.3

分子科学会

THE SURFACE SCIENCE SOCIETY OF JAPAN

The Ceramic Society of Japan

The Chemical Society of Japan, Division of Energy   committee member  

2020.3 - 2022.2   

International Workshop on Crystalline Materials and Applications (IWCMA-2019)   Advisory Board  

2019   

International Conference on Photochemistry and Sustainable Energy (ICPSE 2019)   Advisory Board  

2019   

Meeting of Japanese Photochemical Association, 2019   committee member  

2019   

The 24th International Conference on Semiconductor Photocatalysis and Solar Energy Conversion (SPASEC-24)   Advisory Board  

2019   

The 22nd International Conference on Semiconductor Photocatalysis & Solar Energy Conversion (SPASEC-22)   Advisory Board  

2017   

International Conference on Photochemistry and Its Applications (ICPA 2017)   Advisory Board  

2017   

Catalysis Society of Japan, Board of Photocatalysis   committee member  

2014.4   

The Japan Society of Vacuum and Surface Science   committee member  

2014.4   

The Surface Science Society of Japan, Chubu-Branch   General affairs  

2011.4 - 2014.3   

Catalysis Society of Japan, Board of Surface Science   committee member  

2009.4   

Surface Spectroscopy 2009   executive committee  

2009   

The Electrochemical Society of Japan, Board of Nano-Surface   committee member  

2004.4   

  committee member  

2004.4 - 2010.8   

Conduction Band and Defect Engineering for the Prominent Visible‐Light Responsive Photocatalysts Reviewed

Akira Yamakata, Kosaku Kato, Takafumi Ogawa, Kanta Ogawa, Makoto Ogawa, Daichi Kato, Chengchao Zhong, Akihide Kuwabara, Ryu Abe, Hiroshi Kageyama

Angewandte Chemie International Edition   2024.12

Zeolite-decorated black TiOx quantum dots for photocatalytic degradation of organic cationic dyes under LED light irradiation Reviewed

Mohammad Rahim Pour, Mohammad Fereidooni, Supareak Praserthdam, Piyasan Praserthdam, Victor Marquez, Kaito Uesaka, Akira Yamakata, C.V. Paz, Nattawut kamjam, Pongsakorn kanjanaboos

Journal of Alloys and Compounds   1008   176797 - 176797   2024.12

Surface Modifications of Layered Perovskite Oxysulfide Photocatalyst Y₂Ti₂O₅S₂ to Enhance Visible‐Light‐Driven Water Splitting Reviewed

Xizhuang Liang, Junie Jhon M. Vequizo, Lihua Lin, Xiaoping Tao, Qiulian Zhu, Mamiko Nakabayashi, Daling Lu, Hiroaki Yoshida, Akira Yamakata, Takashi Hisatomi, Tsuyoshi Takata, Kazunari Domen

Advanced Science   2024.11

Simultaneous Structural and Electronic Engineering on Bi‐ and Rh‐co‐doped SrTiO3 for Promoting Photocatalytic Water Splitting Reviewed

Zhenhua Pan, Junie Jhon M. Vequizo, Hiroaki Yoshida, Jianuo Li, Xiaoshan zheng, Chiheng Chu, Qian Wang, Mengdie Cai, Song Sun, Kenji Katayama, Akira Yamakata, Kazunari Domen

Angewandte Chemie International Edition   2024.8

Nonfullerene Acceptors Bearing Spiro-Substituted Bithiophene Units in Organic Solar Cells: Tuning the Frontier Molecular Orbital Distribution to Reduce Exciton Binding Energy. Reviewed International journal

Kai Wang, Seihou Jinnai, Takumi Urakami, Hirofumi Sato, Masahiro Higashi, Sota Tsujimura, Yasuhiro Kobori, Rintaro Adachi, Akira Yamakata, Yutaka Ie

Angewandte Chemie (International ed. in English)   e202412691   2024.8

Development of Non-Fullerene Acceptors with π-Extended Central Unit for Organic Photovoltaic Devices Reviewed

Tomokazu Umeyama, Motohisa Kubota, Haoxuan Zhang, Rintaro Adachi, Akira Yamakata, Tomoyuki Koganezawa, Hiroshi Imahori

Journal of Photopolymer Science and Technology   37 ( 2 )   197 - 204   2024.6

Atomically dispersed low-valent Au boosts photocatalytic hydroxyl radical production Reviewed

Zhenyuan Teng, Hongbin Yang, Qitao Zhang, Wenan Cai, Ying-Rui Lu, Kosaku Kato, Zhenzong Zhang, Jie Ding, Han Sun, Sixiao Liu, Chengyin Wang, Peng Chen, Akira Yamakata, Ting-Shan Chan, Chenliang Su, Teruhisa Ohno, Bin Liu

Nature Chemistry   16 ( 8 )   1250 - 1260   2024.6

Double‐Hollow Au@CdS Yolk@Shell Nanostructures as Superior Plasmonic Photocatalysts for Solar Hydrogen Production Reviewed

Yi‐An Chen, Yuhi Nakayasu, Yu‐Chang Lin, Jui‐Cheng Kao, Kai‐Chi Hsiao, Quang‐Tuyen Le, Kao‐Der Chang, Ming‐Chung Wu, Jyh‐Pin Chou, Chun‐Wei Pao, Tso‐Fu Mark Chang, Masato Sone, Chun‐Yi Chen, Yu‐Chieh Lo, Yan‐Gu Lin, Akira Yamakata, Yung‐Jung Hsu

Advanced Functional Materials   2024.6

Carbon Nanotubes as a Solid-State Electron Mediator for Visible-Light-Driven Z-Scheme Overall Water Splitting Reviewed

Lihua Lin, Yiwen Ma, Nobuyuki Zettsu, Junie Jhon M. Vequizo, Chen Gu, Akira Yamakata, Takashi Hisatomi, Tsuyoshi Takata, Kazunari Domen

Journal of the American Chemical Society   146 ( 21 )   14829 - 14834   2024.5

Trapping of Intermediates of a Photocatalytic Oxygen Evolution Reaction in Overall Water Splitting Reviewed

Fumiaki Amano, Satoshi Nakayama, Souta Suzuki, Akira Yamakata, Kosuke Beppu

ACS Applied Energy Materials   2024.2

Double Hydrogen Atom Transfer Strategy for Catalytic Acceptorless Dehydrogenation of Cycloalkanes Reviewed

Rahul Jagtap, Yuki Nishioka, Stephen Geddis, Yu Irie, Fuki Masaaki, Yasuhiro Kobori, Rintaro Adachi, Akira Yamakata, Harunobu Mitsunuma, Motomu Kanai

2024.2

Suppression of Charge Recombination by Vertical Arrangement of A Donor Moiety on Flat Planar Dyes for Efficient Dye‐Sensitized Solar Cells Reviewed

Qi Guo, Tomohiro Higashino, Rintaro Adachi, Chayanit Wechwithayakhlung, Daniel Packwood, Akira Yamakata, Hiroshi Imahori

ChemSusChem   17 ( 9 )   2024.1

Efficient and stable visible-light-driven Z-scheme overall water splitting using an oxysulfide H2 evolution photocatalyst Reviewed

Lihua Lin, Yiwen Ma, Junie Jhon M. Vequizo, Mamiko Nakabayashi, Chen Gu, Xiaoping Tao, Hiroaki Yoshida, Yuriy Pihosh, Yuta Nishina, Akira Yamakata, Naoya Shibata, Takashi Hisatomi, Tsuyoshi Takata, Kazunari Domen

Nature Communications   15 ( 1 )   2024.1

An efficient particulate photocatalyst for overall water splitting based on scandium and magnesium co-doped strontium titanate Reviewed

Shigeru Ikeda, Riku Okamoto, Akira Kimura, Yuhi Nakayasu, Akira Yamakata, Ryota Tomizawa, Taizo Masuda, Koichiro Nakatani

Sustainable Energy & Fuels   8 ( 2 )   202 - 209   2024

Activation of Nonoxide Photocatalyst Sheet Operable under Visible Light Irradiation up to 600 nm by Conductive Bilayer Reviewed

Swarnava Nandy, Hiroka Sandaiji, Shuji Sekimori, Junie Jhon M. Vequizo, Rhauane Almeida Galvão, Natsutogi Iwasa, Swapnil S. Karade, Mamiko Nakabayashi, Tsuyoshi Takata, Takashi Hisatomi, Akira Yamakata, Kazunari Domen

ACS Energy Letters   4708 - 4714   2024

Boosting charge separation in organic photovoltaics: unveiling dipole moment variations in excited non-fullerene acceptor layers Reviewed

Akira Yamakata, Kosaku Kato, Takumi Urakami, Sota Tsujimura, Kasumi Murayama, Masahiro Higashi, Hirofumi Sato, Yasuhiro Kobori, Tomokazu Umeyama, Hiroshi Imahori

Chemical Science   15 ( 32 )   12686 - 12694   2024

Sub-50 nm perovskite-type tantalum-based oxynitride single crystals with enhanced photoactivity for water splitting Reviewed

Jiadong Xiao, Mamiko Nakabayashi, Takashi Hisatomi, Junie Jhon M. Vequizo, Wenpeng Li, Kaihong Chen, Xiaoping Tao, Akira Yamakata, Naoya Shibata, Tsuyoshi Takata, Yasunobu Inoue, Kazunari Domen

Nature Communications   14 ( 1 )   2023.12

A Quantitative Study on the Relationship of Specific Surface Area and Carrier Lifetime to Photocatalytic Activity of Anatase TiO₂ Nanoparticles Reviewed

Shimpei Naniwa, Kosaku Kato, Akira Yamakata, Akira Yamamoto, Hisao Yoshida

ACS Catalysis   13 ( 22 )   15212 - 15218   2023.11

Photocatalytic Hydrogen Evolution Activity of Nitrogen/Fluorine-Codoped Rutile TiO₂ Reviewed

Akinobu Miyoshi, Megumi Okazaki, Kosaku Kato, Tomoki Kanazawa, Toshiyuki Yokoi, Shunta Nishioka, Shunsuke Nozawa, Akira Yamakata, Kazuhiko Maeda

ACS Omega   8 ( 44 )   41809 - 41815   2023.10

In situ surface-enhanced infrared absorption analysis of the excited carrier transfer from n-type Si photoelectrode to Pt oxygen evolution cocatalyst by probing adsorbed CO molecules Reviewed

Shu Ashimura, Reiya Konaka, Taki Suginaga, Kazuki Harada, Akira Yamakata, Chechia Hu, Hepsiba Niruba Catherine, Ke-Hsuan Wang, Takeshi Kawai, Masaaki Yoshida

Journal of the Taiwan Institute of Chemical Engineers   105121 - 105121   2023.9

Unfolding the Impact of H<inf>2</inf>-Reduction Treatment in Enhancing the Photocatalytic Activity of Rutile TiO<inf>2</inf> Based on Photocarriers Dynamics Invited Reviewed

Junie Jhon M. Vequizo, Kosaku Kato, Fumiaki Amano, Akira Yamakata

Journal of Physical Chemistry C   127 ( 22 )   10411 - 10418   2023.6

Metal Single‐Atom Cocatalyst on Carbon Nitride for the Photocatalytic Hydrogen Evolution Reaction: Effects of Metal Species Reviewed

Yuki Akinaga, Tokuhisa Kawawaki, Hinano Kameko, Yuki Yamazaki, Kenji Yamazaki, Yuhi Nakayasu, Kosaku Kato, Yuto Tanaka, Adie Tri Hanindriyo, Makito Takagi, Tomomi Shimazaki, Masanori Tachikawa, Akira Yamakata, Yuichi Negishi

Advanced Functional Materials   33 ( 33 )   2023.5

Improved Photocatalytic O2 Evolution on a Sillén–Aurivillius Perovskite Oxychloride Bi6NbWO14Cl by Rh2O3 Additives and Surface Modifications Invited Reviewed

Hajime Suzuki, Takanori Takashima, Osamu Tomita, Tomoki Kanazawa, Shunsuke Nozawa, Kosaku Kato, Akira Yamakata, Kouichi Nakashima, Akinori Saeki, Ryu Abe

The Journal of Physical Chemistry C   127 ( 17 )   7965 - 7973   2023.5

Co-doping of a La5Ti2Cu0.9Ag0.1O7S5 photocatalyst (λ < 700 nm) with Ga and Al to enhance photocatalytic H2 evolution Reviewed International journal

Xiaojun Wang, Zhenhua Pan, Junie Jhon, M. Vequizo, Takashi Hisatomi, Swarnava Nandy, Tomohiro Higashi, Lihua Lin, Jiadong Xiao, Tsuyoshi Takata, Akira Yamakata, Wei Yan, Kazunari Domen

Chemical communications (Cambridge, England)   59 ( 45 )   6913 - 6916   2023.5

Carbon Nitride Loaded with an Ultrafine, Monodisperse, Metallic Platinum‐Cluster Cocatalyst for the Photocatalytic Hydrogen‐Evolution Reaction Reviewed

Daichi Yazaki, Tokuhisa Kawawaki, Daisuke Hirayama, Masanobu Kawachi, Kosaku Kato, Sota Oguchi, Yuichi Yamaguchi, Soichi Kikkawa, Yoshiya Ueki, Sakiat Hossain, D. J. Osborn, Fumihiko Ozaki, Shunsuke Tanaka, Jun Yoshinobu, Gregory F. Metha, Seiji Yamazoe, Akihiko Kudo, Akira Yamakata, Yuichi Negishi

Small   19 ( 34 )   2208287   2023.4

Synthesis of crystal-phase and color tunable mixed anion co-doped titanium oxides and their controllable photocatalytic activity Reviewed

Jingdi Cao, Takuya Hhasegawa, Yusuke Asakura, Akira Yamakata, Peng Sun, Wenbin Cao, Shu Yin

International Journal of Minerals, Metallurgy and Materials   30 ( 10 )   2036 - 2043   2023.4

Asymmetrically coordinated cobalt single atom on carbon nitride for highly selective photocatalytic oxidation of CH4 to CH3OH Reviewed

Jie Ding, Zhenyuan Teng, Xiaozhi Su, Kosaku Kato, Yuhang Liu, Ting Xiao, Wei Liu, Lingyue Liu, Qiao Zhang, Xinyi Ren, Jincheng Zhang, Zhaoyang Chen, Ohno Teruhisa, Akira Yamakata, Hongbin Yang, Yanqiang Huang, Bin Liu, Yueming Zhai

Chem   9 ( 4 )   1017 - 1035   2023.4

Surface-Specific Modification of Graphitic Carbon Nitride by Plasma for Enhanced Durability and Selectivity of Photocatalytic CO2 Reduction with a Supramolecular Photocatalyst Reviewed

Noritaka Sakakibara, Mitsuhiko Shizuno, Tomoki Kanazawa, Kosaku Kato, Akira Yamakata, Shunsuke Nozawa, Tsuyohito Ito, Kazuo Terashima, Kazuhiko Maeda, Yusuke Tamaki, Osamu Ishitani

ACS Applied Materials & Interfaces   15   13025 - 13218   2023.3

Particle Size Dependent Trap States of Photoexcited Carriers in Anatase TiO2 Nanoparticles Invited Reviewed

Shimpei Naniwa, Kosaku Kato, Akira Yamamoto, Hisao Yoshida, Akira Yamakata

The Journal of Physical Chemistry C   127 ( 8 )   4295 - 4302   2023.3

Promoted Utilization of Charge Carriers in La₅Ti₂Cu_0.9Ag_0.1O₇S₅-Based Photocatalyst Sheets for Efficient Z-Scheme Overall Water Splitting Reviewed

Shanshan Chen, Swarnava Nandy, Junie Jhon M. Vequizo, Takashi Hisatomi, Mamiko Nakabayashi, Zhenhua Pan, Qi Xiao, Zheng Wang, Lihua Lin, Song Sun, Kosaku Kato, Akira Yamakata, Naoya Shibata, Tsuyoshi Takata, Fuxiang Zhang, Kazunari Domen

ACS Catalysis   13 ( 5 )   3285 - 3294   2023.2

Overall Water Splitting by a SrTaO₂N-Based Photocatalyst Decorated with an Ir-Promoted Ru-Based Cocatalyst Reviewed

Kaihong Chen, Jiadong Xiao, Junie Jhon M. Vequizo, Takashi Hisatomi, Yiwen Ma, Mamiko Nakabayashi, Tsuyoshi Takata, Akira Yamakata, Naoya Shibata, Kazunari Domen

Journal of the American Chemical Society   145 ( 7 )   3839 - 3843   2023.1

Zr-doped BaTaO₂N photocatalyst modified with Na–Pt cocatalyst for efficient hydrogen evolution and Z-scheme water splitting Reviewed

Huihui Li, Junie Jhon M. Vequizo, Takashi Hisatomi, Mamiko Nakabayashi, Jiadong Xiao, Xiaoping Tao, Zhenhua Pan, Wenpeng Li, Shanshan Chen, Zheng Wang, Naoya Shibata, Akira Yamakata, Tsuyoshi Takata, Kazunari Domen

EES Catalysis   1   26 - 35   2023.1

Active BaTaO2N Photocatalysts Prepared from Amorphous Ta2O5 Precursor for Overall Water Splitting under Visible Light Reviewed

Shinji Nishimae, Junie Jhon M. Vequizo, Yasunobu Inoue, Akira Yamakata, Mamiko Nakabayashi, Tomohiro Higashi, Kazunari Domen

Journal of Materials Chemistry A   11   6299 - 6310   2023

An unexplored role of the CrO_x shell in an elaborated Rh/CrO_x core–shell cocatalyst for photocatalytic water splitting: a selective electron transport pathway from semiconductors to core metals, boosting charge separation and H₂ evolution Reviewed

Tetsu Kotani, Kanta Ogawa, Hajime Suzuki, Kosaku Kato, Osamu Tomita, Akira Yamakata, Ryu Abe

EES Catalysis   1 ( 3 )   255 - 262   2023

An emissive charge-transfer excited-state at the well-defined hetero-nanostructure interface of an organic conjugated molecule and two-dimensional inorganic nanosheet Reviewed

Tomokazu Umeyama, Daizu Mizutani, Yuki Ikeda, W. Ryan Osterloh, Futa Yamamoto, Kosaku Kato, Akira Yamakata, Masahiro Higashi, Takumi Urakami, Hirofumi Sato, Hiroshi Imahori

Chemical Science   14 ( 42 )   11914 - 11923   2023

A general interfacial-energetics-tuning strategy for enhanced artificial photosynthesis Reviewed

Tian Liu, Zhenhua Pan, Kosaku Kato, Junie Jhon M. Vequizo, Rito Yanagi, Xiaoshan Zheng, Weilai Yu, Akira Yamakata, Baoliang Chen, Shu Hu, Kenji Katayama, Chiheng Chu

Nature Communications   13 ( 1 )   7783   2022.12

Harnessing infrared solar energy with plasmonic energy upconversion (Oct, 10.1038/s41893-022-01015-2, 2022) Reviewed

Zichao Lian, Yoichi Kobayashi, Junie Jhon M. Vequizo, Chandana Sampath Kumara Ranasinghe, Akira Yamakata, Takuro Nagai, Koji Kimoto, Katsuaki Kobayashi, Koji Tanaka, Toshiharu Teranishi, Masanori Sakamoto

NATURE SUSTAINABILITY   5   1092 - 1099   2022.11

Effects of Hydroxy Groups in Anthraquinone Dyes on Photocatalytic Activity of Visible-light-sensitized Pt-TiO2 for Hydrogen Evolution Reviewed

Fumiaki Amano, Yasukazu Akaki, Akira Yamakata

Catalysis Surveys from Asia   27 ( 1 )   75 - 83   2022.10

固体表面の動力学に追る時間分解中赤外分光 Invited Reviewed

山方啓, 加藤康作

光学   51   448 - 454   2022.10

Effects of a Nanoparticulate TiO2 Modifier on the Visible-Light CO2 Reduction Performance of a Metal-Complex/Semiconductor Hybrid Photocatalyst Reviewed

Mitsuhiko Shizuno, Kosaku Kato, Shunta Nishioka, Tomoki Kanazawa, Daiki Saito, Shunsuke Nozawa, Akira Yamakata, Osamu Ishitani, Kazuhiko Maeda

ACS Applied Energy Materials   5 ( 8 )   9479 - 9486   2022.8

One-Step Excitation Overall Water Splitting over a Modified Mg-Doped BaTaO2N Photocatalyst Reviewed

Huihui Li, Jiadong Xiao, Junie Jhon M. Vequizo, Takashi Hisatomi, Mamiko Nakabayashi, Zhenhua Pan, Naoya Shibata, Akira Yamakata, Tsuyoshi Takata, Kazunari Domen

ACS Catalysis   12 ( 16 )   10179 - 10185   2022.8

Effect of Surface Plasmon Resonance and the Heterojunction on Photoelectrochemical Activity of Metal-Loaded TiO2 Electrodes under Visible Light Irradiation Reviewed

Chia-Yu Chang, Akira Yamakata, Wenjea J. Tseng

The Journal of Physical Chemistry C   126   12450 - 12459   2022.8

Eliciting the contribution of TiN to photoelectrochemical performance enhancement of Imma-LaTiO2N at neutral pH Invited Reviewed

Mirabbos Hojamberdiev, Juan Manuel Mora-Hernandez, Ronald Vargas, Eva Maria Heppke, Kunio Yubuta, Akira Yamakata, Zukhra Kadirova, Leticia Torres-Martinez, Katsuya Teshima, Martin Lerch

MATERIALS TODAY ENERGY   27   2022.7

Role of Oxygen Vacancy in the Photocarrier Dynamics of WO3 Photocatalysts: The Case of Recombination Centers Reviewed

Kosaku Kato, Yohei Uemura, Kiyotaka Asakura, Akira Yamakata

The Journal of Physical Chemistry C   126 ( 22 )   9257 - 9263   2022.6

Enhanced Overall Water Splitting by a Zirconium‐Doped TaON‐Based Photocatalyst Reviewed

Jiadong Xiao, Shinji Nishimae, Junie Jhon M. Vequizo, Mamiko Nakabayashi, Takashi Hisatomi, Huihui Li, Lihua Lin, Naoya Shibata, Akira Yamakata, Yasunobu Inoue, Kazunari Domen

Angewandte Chemie International Edition   61 ( 17 )   2022.4

Identification of a Self-Photosensitizing Hydrogen Atom Transfer Organocatalyst System. Reviewed International journal

Hiromu Fuse, Yu Irie, Masaaki Fuki, Yasuhiro Kobori, Kosaku Kato, Akira Yamakata, Masahiro Higashi, Harunobu Mitsunuma, Motomu Kanai

Journal of the American Chemical Society   144 ( 14 )   6566 - 6574   2022.4

時間分解分光計測を利用した光触媒反応機構の解明 Invited Reviewed

山方啓

分光研究   71   75 - 89   2022.4

Donor-π-Acceptor Type Porphyrin-Fullerene Dyad with Acetylene Bridge for p-Type Dye-sensitized Solar Cell Reviewed

Qi Guo, Tomohiro Higashino, Kosaku Kato, Akira Yamakata, Hiroshi Imahori

Chemistry Letters   51 ( 3 )   260 - 263   2022.2

Manipulation of charge carrier flow in Bi4NbO8Cl nanoplate photocatalyst with metal loading Reviewed

Kanta Ogawa, Ryota Sakamoto, Chengchao Zhong, Hajime Suzuki, Kosaku Kato, Osamu Tomita, Kouichi Nakashima, Akira Yamakata, Takashi Tachikawa, Akinori Saeki, Hiroshi Kageyama, Ryu Abe

Chemical Science   13 ( 11 )   3118 - 3128   2022.1

Unfolding the Role of B Site-Selective Doping of Aliovalent Cations on Enhancing Sacrificial Visible Light-Induced Photocatalytic H2 and O2 Evolution over BaTaO2N Reviewed

Mirabbos Hojamberdiev, Ronald Vargas, Zukhra C. Kadirova, Kosaku Kato, Hadi Sena, Aleksei G. Krasnov, Akira Yamakata, Katsuya Teshima, Martin Lerch

ACS Catalysis   12 ( 2 )   1403 - 1414   2022.1

Overall photosynthesis of H2O2 by an inorganic semiconductor Reviewed

Pan Zhenhua, Junie Jhon, M. Vequizo, Kosaku Kato, Akira Yamakata, Kenji Katayama, Chiheng Chu, Kazunari Domen

Nature Communications   13 ( 1 )   2022.1

Improvement of Visible‐Light H2 Evolution Activity of Pb2Ti2O5.4F1.2 Photocatalyst by Coloading of Rh and Pd Cocatalysts Reviewed

Kenta Aihara, Kosaku Kato, Tomoki Uchiyama, Shuhei Yasuda, Toshiyuki Yokoi, Akira Yamakata, Yoshiharu Uchimoto, Kazuhiko Maeda

Chemistry - A European Journal   28 ( 43 )   2022

Influences of pulverization and annealing treatment on the photocatalytic activity of BiVO₄ for oxygen evolution Reviewed

Kazuya Okuno, Hiromu Kumagai, Junie Jhon M. Vequizo, Kosaku Kato, Makoto Kobayashi, Akira Yamakata, Masato Kakihana, Hideki Kato

Sustainable Energy &amp; Fuels   6 ( 7 )   1698 - 1707   2022

Photoexcited charge manipulation in conjugated polymers bearing a Ru(ii) complex catalyst for visible-light CO2 reduction Invited Reviewed

Akinobu Nakada, Ryuichi Miyakawa, Ren Itagaki, Kosaku Kato, Chinami Takashima, Akinori Saeki, Akira Yamakata, Ryu Abe, Hiromi Nakai, Ho-Chol Chang

Journal of Materials Chemistry A   10 ( 37 )   19821 - 19828   2022

Effects of the rigid and sterically bulky structure of non-fused nonfullerene acceptors on transient photon-to-current dynamics Reviewed

Seihou Jinnai, Kasumi Murayama, Keisuke Nagai, Megumi Mineshita, Kosaku Kato, Azusa Muraoka, Akira Yamakata, Akinori Saeki, Yasuhiro Kobori, Yutaka Ie

Journal of Materials Chemistry A   10 ( 37 )   20035 - 20047   2022

Unfolding the Role of B Site-Selective Doping of Aliovalent Cations on Enhancing Sacrificial Visible Light-Induced Photocatalytic H₂ and O₂ Evolution over BaTaO₂N

Akira Yamakata

ACS Catalysis   2022

One-Step Excitation Overall Water Splitting over a Modified Mg-Doped BaTaO2N Photocatalyst

Akira Yamakata

ACS Catalysis   2022

Harnessing infrared solar energy with plasmonic energy upconversion

Akira Yamakata

Nature Sustainability   2022

Effect of Terminal-Group Halogenation of Naphthalene-Based Nonfullerene Acceptors on Their Film Structure and Photophysical and Photovoltaic Properties Reviewed

Tomokazu Umeyama, Tatsuho Wada, Kensho Igarashi, Kosaku Kato, Akira Yamakata, Taiki Takeyama, Yuji Sakamoto, Yasunari Tamai, Hideo Ohkita, Keiichi Ishida, Tomoyuki Koganezawa, Shunsuke Ohtani, Kazuo Tanaka, Hiroshi Imahori

ACS Applied Energy Materials   4 ( 12 )   14022 - 14033   2021.12

Modified SILAR grown ZnO films on p ‐Si(100) with enhanced charge separation for UV light sensing application Reviewed

Jose Presiphil B. Ontolan, Junie Jhon M. Vequizo, Akira Yamakata, Reynaldo M. Vequizo

physica status solidi (a)   218 ( 22 )   2100363 - 2100363   2021.10

Forward and backward electron transfer on Pt loaded TiO2 photocatalysts under visible-light illumination Reviewed

Naohiro Inoue, Kyohei Shiraki, Kosaku Kato, Shu Ashimura, Masaaki Yoshida, Akira Yamakata

Applied Physics Letters   119 ( 13 )   133905 - 133905   2021.9

Time-Retrenched Synthesis of BaTaO2N by Localizing an NH3 Delivery System for Visible-Light-Driven Photoelectrochemical Water Oxidation at Neutral pH: Solid-State Reaction or Flux Method? Reviewed

Mirabbos Hojamberdiev, J. Manuel Mora-Hernandez, Ronald Vargas, Akira Yamakata, Kunio Yubuta, Eva Maria Heppke, Leticia M. Torres-Martínez, Katsuya Teshima, Martin Lerch

ACS Applied Energy Materials   4 ( 9 )   9315 - 9327   2021.9

Control of the Photocatalytic Activity of Metastable Layered Oxynitride K2LaTa2O6N through Topochemical Transformation of Tuned Oxide Precursors Reviewed

Hiroto Mogi, Kosaku Kato, Shuhei Yasuda, Tomoki Kanazawa, Akinobu Miyoshi, Shunta Nishioka, Takayoshi Oshima, Ya Tang, Toshiyuki Yokoi, Shunsuke Nozawa, Akira Yamakata, Kazuhiko Maeda

Chemistry of Materials   33 ( 16 )   6443 - 6452   2021.8

Surface Modifications of (ZnSe)0.5(CuGa2.5Se4.25)0.5 to Promote Photocatalytic Z-Scheme Overall Water Splitting Reviewed

Shanshan Chen, Junie Jhon M. Vequizo, Zhenhua Pan, Takashi Hisatomi, Mamiko Nakabayashi, Lihua Lin, Zheng Wang, Kosaku Kato, Akira Yamakata, Naoya Shibata, Tsuyoshi Takata, Taro Yamada, Kazunari Domen

Journal of the American Chemical Society   143 ( 28 )   10633 - 10641   2021.7

Simultaneously Tuning the Defects and Surface Properties of Ta3N5 Nanoparticles by Mg–Zr Codoping for Significantly Accelerated Photocatalytic H2 Evolution Reviewed

Jiadong Xiao, Junie Jhon M. Vequizo, Takashi Hisatomi, Jabor Rabeah, Mamiko Nakabayashi, Zheng Wang, Qi Xiao, Huihui Li, Zhenhua Pan, Mary Krause, Nick Yin, Gordon Smith, Naoya Shibata, Angelika Brückner, Akira Yamakata, Tsuyoshi Takata, Kazunari Domen

Journal of the American Chemical Society   143 ( 27 )   10059 - 10064   2021.7

Buckyball as an Electron Donor in a Dyad of C60 and Xanthene Dye Reviewed

Haruka Kano, Kyohei Matsuo, Hironobu Hayashi, Kosaku Kato, Akira Yamakata, Hiroko Yamada, Naoki Aratani

European Journal of Organic Chemistry   2021 ( 23 )   3377 - 3381   2021.6

Titanium Dioxide/Polyvinyl Alcohol/Cork Nanocomposite: A Floating Photocatalyst for the Degradation of Methylene Blue under Irradiation of a Visible Light Source Reviewed

Nurul Hidayah Mohamad Idris, Jayalakshmi Rajakumar, Kuan Yew Cheong, Brendan J. Kennedy, Teruhisa Ohno, Akira Yamakata, Hooi Ling Lee

ACS Omega   6 ( 22 )   14493 - 14503   2021.6

(Invited) Core-Shell Double Doping for the Remarkable Photocatalytic Water Splitting on Ga2O3

Akira Yamakata, Junie Jhon M. Vequizo, Kosaku Kato, Yoshihisa Sakata

ECS Meeting Abstracts   {MA}2021-01 ( 15 )   725 - 725   2021.5

Atomically dispersed antimony on carbon nitride for the artificial photosynthesis of hydrogen peroxide Reviewed

Zhenyuan Teng, Qitao Zhang, Hongbin Yang, Kosaku Kato, Wenjuan Yang, Ying-Rui Lu, Sixiao Liu, Chengyin Wang, Akira Yamakata, Chenliang Su, Bin Liu, Teruhisa Ohno

Nature Catalysis   4 ( 5 )   374 - 384   2021.5

A Na-containing Pt cocatalyst for efficient visible-light-induced hydrogen evolution on BaTaO2N Reviewed

Huihui Li, Daling Lu, Shanshan Chen, Takashi Hisatomi, Junie Jhon M. Vequizo, Jiadong Xiao, Zheng Wang, Lihua Lin, Qi Xiao, Yuliang Sun, Yugo Miseki, Kazuhiro Sayama, Akira Yamakata, Tsuyoshi Takata, Kazunari Domen

Journal of Materials Chemistry A   9 ( 24 )   13851 - 13854   2021.4

Utilization of Perovskite-Type Oxynitride La0.5Sr0.5Ta0.5Ti0.5O2N as an O2-Evolving Photocatalyst in Z-Scheme Water Splitting Reviewed

Hiromu Kumagai, Ryosuke Aoyagi, Kosaku Kato, Akira Yamakata, Masato Kakihana, Hideki Kato

ACS Applied Energy Materials   2021.3

Core–Shell Double Doping of Zn and Ca on β-Ga2O3 Photocatalysts for Remarkable Water Splitting Reviewed

Akira Yamakata, Junie Jhon M. Vequizo, Takafumi Ogawa, Kosaku Kato, Shoya Tsuboi, Naohiro Furutani, Masahiro Ohtsuka, Shunsuke Muto, Akihide Kuwabara, Yoshihisa Sakata

ACS Catalysis   11 ( 4 )   1911 - 1919   2021.2

Sequential cocatalyst decoration on BaTaO2N towards highly-active Z-scheme water splitting Reviewed

Zheng Wang, Ying Luo, Takashi Hisatomi, Junie Jhon M. Vequizo, Sayaka Suzuki, Shanshan Chen, Mamiko Nakabayashi, Lihua Lin, Zhenhua Pan, Nobuko Kariya, Akira Yamakata, Naoya Shibata, Tsuyoshi Takata, Katsuya Teshima, Kazunari Domen

Nature Communications   12 ( 1 )   1005   2021.2

半導体光触媒粒子中の欠陥が及ぼす光励起キャリアの再結合促進と抑制効果 Invited

山方啓, 加藤康作

会報光触媒   64   27 - 36   2021.1

Earth-abundant iron(iii) species serves as a cocatalyst boosting the multielectron reduction of IO3−/I− redox shuttle in Z-scheme photocatalytic water splitting Reviewed

Katsuya Murofushi, Kanta Ogawa, Hajime Suzuki, Ryota Sakamoto, Osamu Tomita, Kosaku Kato, Akira Yamakata, Akinori Saeki, Ryu Abe

Journal of Materials Chemistry A   9 ( 19 )   11718 - 11725   2021

Cocatalyst engineering of a narrow bandgap Ga-La5Ti2Cu0.9Ag0.1O7S5 photocatalyst towards effectively enhanced water splitting Reviewed

Qi Xiao, Jiadong Xiao, Junie Jhon M. Vequizo, Takashi Hisatomi, Mamiko Nakabayashi, Shanshan Chen, Zhenhua Pan, Lihua Lin, Naoya Shibata, Akira Yamakata, Tsuyoshi Takata, Kazunari Domen

Journal of Materials Chemistry A   9 ( 48 )   27485 - 27492   2021

Atomically dispersed antimony on carbon nitride for the artificial photosynthesis of hydrogen peroxide (vol 4, pg 374, 2021)

Akira Yamakata

Nature Catalysis   2021

Heavy Metal Effects on the Photovoltaic Properties of Metallocorroles in Dye-Sensitized Solar Cells Reviewed

Tomohiro Higashino, Yuma Kurumisawa, Abraham B. Alemayehu, Rune F. Einrem, Debashis Sahu, Daniel Packwood, Kosaku Kato, Akira Yamakata, Abhik Ghosh, Hiroshi Imahori

ACS Applied Energy Materials   3 ( 12 )   12460 - 12467   2020.12

Time-Resolved Spectroscopy of Defect-Induced Effects on Photocarrier Dynamics in SrTiO3 Powder

Akira Yamakata, Kosaku Kato

ECS Meeting Abstracts   {MA}2020-02 ( 56 )   3873 - 3873   2020.11

Optically Transparent Colloidal Dispersion of Titania Nanoparticles Storable for Longer than One Year Prepared by Sol/Gel Progressive Hydrolysis/Condensation Reviewed

Keito Sano, Fazalurahman Kuttassery, Tetsuya Shimada, Tamao Ishida, Shinsuke Takagi, Bunsho Ohtani, Akira Yamakata, Tetsuo Honma, Hiroshi Tachibana, Haruo Inoue

ACS Applied Materials & Interfaces   12 ( 40 )   44743 - 44753   2020.10

Investigation on the highly active SrTiO3 photocatalyst toward overall H2O splitting by doping Na ion Reviewed

Junzhe Jiang, Kosaku Kato, Hirotaka Fujimori, Akira Yamakata, Yoshihisa Sakata

Journal of Catalysis   390   81 - 89   2020.8

Synthesis of Three-Layer Perovskite Oxynitride K2Ca2Ta3O9N·2H2O and Photocatalytic Activity for H2 Evolution under Visible Light Reviewed

Ya Tang, Kosaku Kato, Takayoshi Oshima, Hiroto Mogi, Akinobu Miyoshi, Kotaro Fujii, Kei-ichi Yanagisawa, Koji Kimoto, Akira Yamakata, Masatomo Yashima, Kazuhiko Maeda

Inorganic Chemistry   59 ( 15 )   11122 - 11128   2020.8

Heteroatom Dopants Promote Two‐Electron O 2 Reduction for Photocatalytic Production of H 2 O 2 on Polymeric Carbon Nitride Reviewed

Peng Zhang, Yawen Tong, Yong Liu, Junie Jhon M. Vequizo, Hongwei Sun, Can Yang, Akira Yamakata, Fengtao Fan, Wei Lin, Xinchen Wang, Wonyong Choi

Angewandte Chemie International Edition   59   16209 - 16217   2020.6

Efficient photocatalytic hydrogen evolution on single-crystalline metal selenide particles with suitable cocatalysts Reviewed

Shanshan Chen, Junie Jhon, M. Vequizo, Takashi Hisatomi, Mamiko Nakabayashi, Lihua Lin, Zheng Wang, Akira Yamakata, Naoya Shibata, Tsuyoshi Takata, Taro Yamada, Kazunari Domen

Chemical Science   11 ( 25 )   6436 - 6441   2020.4

Activation of a Pt-loaded Pb<inf>2</inf>Ti<inf>2</inf>O<inf>5.4</inf>F<inf>1.2</inf> photocatalyst by alkaline chloride treatment for improved H<inf>2</inf> evolution under visible light Reviewed

Wakayama, H., Kato, K., Kashihara, K., Uchiyama, T., Miyoshi, A., Nakata, H., Lu, D., Oka, K., Yamakata, A., Uchimoto, Y., Maeda, K.

Journal of Materials Chemistry A   8 ( 18 )   9099 - 9108   2020.4

How g-C3N4 Works and Is Different from TiO2 as an Environmental Photocatalyst: Mechanistic View

Jonghun Lim, Hyejin Kim, Jihee Park, Gun-Hee Moon, Junie Jhon M Vequizo, Akira Yamakata, Jinwoo Lee, Wonyong Choi

Environmental science &amp; technology   54 ( 1 )   497 - 506   2020.1

Identification of Individual Electron- and Hole-Transfer Kinetics at CoOx/BiVO4/SnO2 Double Heterojunctions Reviewed

Akira Yamakata, Chandana Sampath, Kumara Ranasinghe, Naruki Hayashi, Kosaku Kato, Junie Jhon, M. Vequizo

ACS Applied Energy Materials   3 ( 1 )   1207 - 1214   2020.1

時間分解分光測定による粉末欠陥への光励起キャリアー捕捉過程と光触媒活性に及ぼす影響 Reviewed

山方啓* and Junie Jhon M. Vequizo,

触媒 【特集号: 触媒設計を拓く欠陥構造のキャラクタリゼーション】   62 ( 1 )   22 - 28   2020.1

Synthesis of Copolymerized Carbon Nitride Nanosheets from Urea and 2-Aminobenzonitrile for Enhanced Visible-Light CO2 Reduction with a Ruthenium(II) Complex Catalyst Reviewed

Kengo Shibata, Kosaku Kato, Constantine Tsounis, Tomoki Kanazawa, Daling Lu, Shunsuke Nozawa, Akira Yamakata, Osamu Ishitani, Kazuhiko Maeda

Solar RRL   4 ( 8 )   1900461   2020.1

How g-C3N4 Works and Is Different from TiO2 as Environmental Photocatalyst: Mechanistic View Reviewed International journal

Jonghun Lim, Hyejin Kim, Jihee Park, Gun-hee Moon, Junie Jhon, M. Vequizo, Akira Yamakata, Jinwoo Lee, Wonyong Choi

Environmental Science & Technology   54 ( 1 )   497 - 506   2020.1

Enhancement of UV-responsive photocatalysts aided by visible-light responsive photocatalysts: Role of WO<inf>3</inf> for H<inf>2</inf> evolution on CuCl Reviewed

Takagi, M., Kawaguchi, M., Yamakata, A.

Applied Catalysis B: Environmental   263   118333 - 118333   2020

Cobalt Aluminate Spinel as a Cocatalyst for Photocatalytic Oxidation of Water: Significant Hole-Trapping Effect Reviewed

Kanazawa, T., Kato, K., Yamaguchi, R., Uchiyama, T., Lu, D., Nozawa, S., Yamakata, A., Uchimoto, Y., Maeda, K.

ACS Catalysis   10 ( 9 )   4960 - 4966   2020

Defect-Induced Acceleration and Deceleration of Photocarrier Recombination in SrTiO<inf>3</inf>Powders Reviewed

Kato, K., Yamakata, A., Yamakata, A.

Journal of Physical Chemistry C   124 ( 20 )   11057 - 11063   2020

Synthesis of three-component C<inf>3</inf>N<inf>4</inf>/rGO/C-TiO<inf>2</inf> photocatalyst with enhanced visible-light responsive photocatalytic deNO<inf>x</inf> activity Reviewed

Noda, C., Asakura, Y., Shiraki, K., Yamakata, A., Yin, S.

Chemical Engineering Journal   390   124616 - 124616   2020

Nano vs. bulk rutile TiO2:N,F in Z-scheme overall water splitting under visible light Reviewed

Akinobu Miyoshi, Kosaku Kato, Toshiyuki Yokoi, Jan J. Wiesfeld, Kiyotaka Nakajima, Akira Yamakata, Kazuhiko Maeda

Journal of Materials Chemistry A   8 ( 24 )   11996 - 12002   2020

Enhancement of photoelectrochemical activity of TiO<inf>2</inf> electrode by particulate/dense double-layer formation Invited Reviewed

Hayashi, N., Kato, K., Yamakata, A.

The Journal of chemical physics   152 ( 24 )   241101 - 241101   2020

Fe/Ru Oxide as Versatile and Effective Cocatalyst for Boosting Z-Scheme Water Splitting: Suppressing Undesirable Backward Electron Transfer Reviewed

Akinobu Nakada, Hajime Suzuki, Junie Jhon, M. Vequizo, Kanta Ogawa, Masanobu Higashi, Akinori Saeki, Akira Yamakata, Hiroshi Kageyama, Ryu Abe

ACS Applied Materials & Interfaces   11 ( 49 )   45606 - 45611   2019.11

Crucial impact of reduction on the photocarriers dynamics on SrTiO3 powders studied by transient absorption spectroscopy Reviewed

Junie Jhon, M. Vequizo, Shunta Nishioka, Junji Hyodo, Yoshihiro Yamazaki, Kazuhiko Maeda, Akira Yamakata

J. Mater. Chem. A   7 ( 45 )   26139 - 26146   2019.10

Achievement of High Photocatalytic Performance to BaTi4O9 toward Overall H2O Splitting Reviewed

Yuichi Hiramachi, Hirotaka Fujimori, Akira Yamakata, Yoshihisa Sakata

ChemCatChem   11 ( 24 )   6213 - 6217   2019.10

Solar-Driven Photoelectrochemical Water Oxidation over an n-Type Lead-Titanium Oxyfluoride Anode Reviewed

Naoki Hirayama, Hiroko Nakata, Haruki Wakayama, Shunta Nishioka, Tomoki Kanazawa, Ryutaro Kamata, Yosuke Ebato, Kosaku Kato, Hiromu Kumagai, Akira Yamakata, Kengo Oka, Kazuhiko Maeda

J. Am. Chem. Soc.   141 ( 43 )   17158 - 17165   2019.10

Effect of Na-doping on Electron Decay kinetics in SrTiO3 Photocatalyst Reviewed

Kosaku Kato, Junzhe Jiang, Yoshihisa Sakata, Akira Yamakata

ChemCatChem   11 ( 24 )   6349 - 6354   2019.10

Enhanced water splitting through two-step photoexcitation by sunlight using tantalum/nitrogen-codoped rutile titania as a water oxidation photocatalyst Reviewed

Shunta Nishioka, Kei-ichi Yanagisawa, Daling Lu, Junie Jhon, M. Vequizo, Akira Yamakata, Koji Kimoto, Miki Inada, Kazuhiko Maeda

Sustainable Energy & Fuels   3 ( 9 )   2337 - 2346   2019.7

Enhanced Visible Light Response of TiO<inf>2</inf> Codoped with Cr and Ta Photocatalysts by Electron Doping Reviewed

Fumiaki Amano, Masashi Nakata, Junie Jhon M. Vequizo, Akira Yamakata

ACS Applied Energy Materials   2 ( 5 )   3274 - 3282   2019.5

Construction of Spatial Charge Separation Facets on BaTaO2N Crystals by Flux Growth Approach for Visible-Light-Driven H2 Production Reviewed

Ying Luo, Sayaka Suzuki, Zheng Wang, Kunio Yubuta, Junie Jhon, M. Vequizo, Akira Yamakata, Hiromasa Shiiba, Takashi Hisatomi, Kazunari Domen, Katsuya Teshima

ACS Applied Materials & Interfaces   11 ( 25 )   22264 - 22271   2019.5

Effect of CuFe2O4 ferrite on photocatalysis and carrier dynamics of electrospun α-Fe2O3 nanofibers by time-resolved transient absorption spectroscopy Reviewed

Pei-Hsuan Hung, Junie Jhon, M. Vequizo, Ren-An Wu, Akira Yamakata, Wenjea J. Tseng

Ceram. Int.   45 ( 12 )   15676 - 15680   2019.5

Oxygen-Doped Ta3N5 Nanoparticles for Enhanced Z-Scheme Carbon Dioxide Reduction with a Binuclear Ruthenium(II) Complex under Visible Light Reviewed

Kanemichi Muraoka, Junie Jhon, M. Vequizo, Ryo Kuriki, Akira Yamakata, Tomoki Uchiyama, Daling Lu, Yoshiharu Uchimoto, Osamu Ishitani, Kazuhiko Maeda

ChemPhotoChem   3 ( 10 )   1027 - 1033   2019.5

Improvement of photocatalytic activity under visible-light irradiation by heterojunction of Cu ion loaded WO3 and Cu ion loaded N-TiO2 Reviewed

Tomoya Iihoshi, Takeshi Ohwaki, Junie Jhon, M. Vequizo, Akira Yamakata

Applied Catalysis B: Environmental   248   249 - 254   2019.2

Sodium titanium oxide bronze nanoparticles synthesized via concurrent reduction and Na+-doping into TiO2(B) Reviewed

Hasegawa, George, Tanaka, Moeko, Vequizo, Junie Jhon M., Yamakata, Akira, Hojo, Hajime, Kobayashi, Makoto, Kakihana, Masato, Inada, Miki, Akamatsu, Hirofumi, Hayashi, Katsuro

NANOSCALE   11 ( 3 )   1442 - 1450   2019.1

Clear and transparent nanocrystals for infrared-responsive carrier transfer Reviewed

Sakamoto, M., Kawawaki, T., Kimura, M., Vequizo, J.J.M., Matsunaga, H., Ranasinghe, C.S.K., Yamakata, A., Matsuzaki, H., Furube, A., Teranishi, T.

Nature communications   10 ( 1 )   406 - 406   2019

Near infrared light induced plasmonic hot hole transfer at a nano-heterointerface Reviewed

Zichao Lian, Masanori Sakamoto, Hironori Matsunaga, Junie Jhon M. Vequizo, Akira Yamakata, Mitsutaka Haruta, Hiroki Kurata, Wataru Ota, Tohru Sato, Toshiharu Teranishi

Nature Communications   9 ( 1 )   2314 - 2314   2018.12

Curious Behaviors of Photogenerated Electrons and Holes at the Defects on Anatase, Rutile, and Brookite TiO2 Powders: A Review Invited Reviewed

Akira Yamakata, Junie Jhon, M. Vequizo

J. Photochem. Photobiol. C-Photochem. Rev.   40   234 - 243   2018.12

Plasmonic p–n Junction for Infrared Light to Chemical Energy Conversion Reviewed

Zichao Lian, Masanori Sakamoto, Junie Jhon, M. Vequizo, Chandana Sampath, Kumara Ranasinghe, Akira Yamakata, Takuro Nagai, Koji Kimoto, Yoichi Kobayashi, Naoto Tamai, Toshiharu Teranishi

J. Am. Chem. Soc.   141 ( 6 )   2446 - 2450   2018.12

Expansion of the photoresponse window of a BiVO4 photocatalyst by doping with chromium(VI) Reviewed

Kazuya Okuno, Hideki Kato, Junie Jhon, M. Vequizo, Akira Yamakata, Hisayoshi Kobayashi, Makoto Kobayashi, Masato Kakihana

RSC Advances   8 ( 67 )   38140 - 38145   2018.11

A Copolymerization Approach to Improving Ru(II)-Complex/C3N4 Hybrid Photocatalysts for Visible-Light CO2 Reduction Reviewed

Constantine Tsounis, Ryo Kuriki, Kengo Shibata, Junie Jhon, M. Vequizo, Daling Lu, Akira Yamakata, Osamu Ishitani, Rose Amal, Kazuhiko Maeda

ACS Sustainable Chemistry & Engineering   6 ( 11 )   15333 - 15340   2018.10

Effects of Interfacial Electron Transfer in Metal Complex−Semiconductor Hybrid Photocatalysts on Z‑Scheme CO2 Reduction under Visible Light Reviewed

Akinobu Nakada, Ryo Kuriki, Keita Sekizawa, Shunta Nishioka, Junie Jhon, M. Vequizo, Tomoki Uchiyama, Nozomi Kawakami, Daling Lu, Akira Yamakata, Yoshiharu Uchimoto, Osamu Ishitani, Kazuhiko Maeda

ACS Catalysis   8 ( 10 )   9744 - 9754   2018.9

Undoped Layered Perovskite Oxynitride Li2 LaTa2 O6 N for Photocatalytic CO2 Reduction with Visible Light. Reviewed International journal

Takayoshi Oshima, Tom Ichibha, Ken Sinkou Qin, Kanemichi Muraoka, Junie Jhon M Vequizo, Keisuke Hibino, Ryo Kuriki, Shunsuke Yamashita, Kenta Hongo, Tomoki Uchiyama, Kotaro Fujii, Daling Lu, Ryo Maezono, Akira Yamakata, Hideki Kato, Koji Kimoto, Masatomo Yashima, Yoshiharu Uchimoto, Masato Kakihana, Osamu Ishitani, Hiroshi Kageyama, Kazuhiko Maeda

Angewandte Chemie (International ed. in English)   57 ( 27 )   8154 - 8158   2018.7

Binary flux-promoted formation of trigonal ZnIn2S4 layered crystals using ZnS-containing industrial waste and their photocatalytic performance for H2 production Reviewed

Mirabbos Hojamberdiev, Yanfei Cai, Junie Jhon, M. Vequizo, Mohammad Mansoob Khan, Ronald Vargas, Kunio Yubuta, Akira Yamakata, Katsuya Teshima, Masashi Hasegawa

Green Chemistry   20 ( 16 )   3845 - 3856   2018.7

Enhanced photocatalytic NOx decomposition of visible-light responsive F-TiO2/(N,C)-TiO2 by charge transfer between F-TiO2 and (N,C)-TiO2through their doping levels Reviewed

Shio Komatsuda, Yusuke Asakura, Junie Jhon, M. Vequizo, Akira Yamakata, Shu Yin

Appl. Catal. B-Environ.   238   358 - 364   2018.7

Excited-State Dynamics of Graphitic Carbon Nitride Photocatalyst and Ultrafast Electron Injection to a Ru(II) Mononuclear Complex for Carbon Dioxide Reduction Reviewed

Ryo Kuriki, Chandana Sampath, Kumara Ranasinghe, Yasuomi Yamazaki, Akira Yamakata, Osamu Ishitani, Kazuhiko Maeda

J. Phys. Chem. C.   122 ( 29 )   16795 - 16802   2018.6

Homogeneous Electron Doping into Non-Stoichiometric Strontium Titanate Improves Its Photocatalytic Activity for Hydrogen and Oxygen Evolution Reviewed

Shunta Nishioka, Junji Hyodo, Junie Jhon, M. Vequizo, Shunsuke Yamashita, Hiromu Kumagai, Koji Kimoto, Akira Yamakata, Yoshihiro Yamazaki, Kazuhiko Maeda

ACS Catal.   8 ( 8 )   7190 - 7200   2018.6

Fabrication of robust TiO2 thin films by atomized spray pyrolysis deposition for photoelectrochemical water oxidation Reviewed

Chandana Sampath Kumara Ranasinghe, Junie Jhon M. Vequizo, Akira Yamakata

Journal of Photochemistry and Photobiology A: Chemistry   358   320 - 326   2018.5

Role of CoOx cocatalyst on Ta3N5 photocatalysts studied by transient visible to mid-infrared absorption spectroscopy Reviewed

Junie Jhon M. Vequizo, Mirabbos Hojamberdiev, Katsuya Teshima, Akira Yamakata

Journal of Photochemistry and Photobiology A: Chemistry   358   315 - 319   2018.5

Structural changes of water molecules during photoelectrochemical water oxidation on TiO2 thin film electrodes Reviewed

Chandana Sampath Kumara Ranasinghe, Akira Yamakata

Physical Chemistry Chemical Physics   20 ( 5 )   3388 - 3394   2018.2

Oxygen induced enhancement of NIR emission in brookite TiO2 powders: Comparison with rutile and anatase TiO2 powders Reviewed

Junie Jhon M. Vequizo, Sunao Kamimura, Teruhisa Ohno, Akira Yamakata

Physical Chemistry Chemical Physics   20 ( 5 )   3241 - 3248   2018.2

Visible-light CO2 reduction over a ruthenium(ii)-complex/C3N4 hybrid photocatalyst: The promotional effect of silver species Reviewed

Kazuhiko Maeda, Daehyeon An, Chandana Sampath Kumara Ranasinghe, Tomoki Uchiyama, Ryo Kuriki, Tomoki Kanazawa, Daling Lu, Shunsuke Nozawa, Akira Yamakata, Yoshiharu Uchimoto, Osamu Ishitani

Journal of Materials Chemistry A   6 ( 20 )   9708 - 9715   2018

Nitrogen/fluorine-codoped rutile titania as a stable oxygen-evolution photocatalyst for solar-driven Z-scheme water splitting Reviewed

Akinobu Miyoshi, Junie Jhon M. Vequizo, Shunta Nishioka, Yuma Kato, Muneaki Yamamoto, Shunsuke Yamashita, Toshiyuki Yokoi, Akihide Iwase, Shunsuke Nozawa, Akira Yamakata, Tomoko Yoshida, Koji Kimoto, Akihiko Kudo, Kazuhiko Maeda

Sustainable Energy & Fuels   2   2025 - 2035   2018

Engaging the flux-grown La1-xSrxFe1-yTiyO3 crystals in visible-light-driven photocatalytic hydrogen generation Reviewed

Mirabbos Hojamberdiev, Kenta Kawashima, Mahesh Kumar, Akira Yamakata, Kunio Yubuta, Aleksander Gurlo, Masashi Hasegawa, Kazunari Domen, Katsuya Teshima

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY   42 ( 44 )   27024 - 27033   2017.11

Cation-dependent restructure of the electric double layer on CO-covered Pt electrodes: Difference between hydrophilic and hydrophobic cations Reviewed

Akira Yamakata, Masatoshi Osawa

JOURNAL OF ELECTROANALYTICAL CHEMISTRY   800   19 - 24   2017.9

Elucidating the impact of A-site cation change on photocatalytic H-2 and O-2 evolution activities of perovskite-type LnTaON(2) (Ln = La and Pr) Reviewed

Mirabbos Hojamberdiev, Maged F. Bekheet, Judy N. Hart, Junie Jhon M. Vequizo, Akira Yamakata, Kunio Yubuta, Aleksander Gurlo, Masashi Hasegawa, Kazunari Domen, Katsuya Teshima

PHYSICAL CHEMISTRY CHEMICAL PHYSICS   19 ( 33 )   22210 - 22220   2017.9

Interfacial Manipulation by Rutile TiO2 Nanoparticles to Boost CO2 Reduction into CO on a Metal-Complex/Semiconductor Hybrid Photocatalyst Reviewed

Keisuke Wada, Chandana Sampath Kumara Ranasinghe, Ryo Kuriki, Akira Yamakata, Osamu Ishitani, Kazuhiko Maeda

ACS APPLIED MATERIALS & INTERFACES   9 ( 28 )   23869 - 23877   2017.7

Solar-driven Z-scheme water splitting using tantalum/nitrogen co-doped rutile titania nanorod as an oxygen evolution photocatalyst Reviewed

Akinobu Nakada, Shunta Nishioka, Junie Jhon M. Vequizo, Kanemichi Muraoka, Tomoki Kanazawa, Akira Yamakata, Shunsuke Nozawa, Hiromu Kumagai, Shin-ichi Adachi, Osamu Ishitani, Kazuhiko Maeda

JOURNAL OF MATERIALS CHEMISTRY A   5 ( 23 )   11710 - 11719   2017.6

Trapping-Induced Enhancement of Photocatalytic Activity on Brookite TiO2 Powders: Comparison with Anatase and Rutile TiO2 Powders Reviewed

Junie Jhon M. Vequizo, Hironori Matsunaga, Tatsuya Ishiku, Sunao Karnimura, Teruhisa Ohno, Akira Yamakata

ACS CATALYSIS   7 ( 4 )   2644 - 2651   2017.4

The contrasting effect of the Ta/Nb ratio in (111)-layered B-site deficient hexagonal perovskite Ba5Nb4-xTaxO15 crystals on visible-light-induced photocatalytic water oxidation activity of their oxynitride derivatives Reviewed

Mirabbos Hojamberdiev, Maged F. Bekheet, Ehsan Zahedi, Hajime Wagata, Junie Jhon M. Vequizo, Akira Yamakata, Kunio Yubuta, Aleksander Gurlo, Kazunari Domen, Katsuya Teshima

DALTON TRANSACTIONS   45 ( 31 )   12559 - 12568   2016.8

Photocatalytic property of metal ion added SrTiO3 to Overall H2O splitting Reviewed

Yoshihisa Sakata, Yoshiko Miyoshi, Tatsuya Maeda, Kohki Ishikiriyama, Yuki Yamazaki, Hayao Imamura, Yeilin Ham, Takashi Hisatomi, Jun Kubota, Akira Yamakata, Kazunari Domen

APPLIED CATALYSIS A-GENERAL   521   227 - 232   2016.7

Enhancement of photoelectrochemical activity of SnS thin-film photoelectrodes using TiO2, Nb2O5, and Ta2O5 metal oxide layers Reviewed

Junie Jhon M. Vequizo, Masanori Yokoyama, Masaya Ichimura, Akira Yamakata

APPLIED PHYSICS EXPRESS   9 ( 6 )   067101   2016.6

酸化チタン光触媒のキャリアーダイナミクス－粉末におけるアナターゼとルチルの特異的な挙動－ Reviewed

山方啓

光化学   47 ( 1 )   25 - 32   2016.4

Dynamics of Photogenerated Charge Carriers on Ni- and Ta-Doped SrTiO3 Photocatalysts Studied by Time-Resolved Absorption and Emission Spectroscopy Reviewed

Akira Yamakata, Masayuki Kawaguchi, Ryosuke Murachi, Masahiro Okawa, Itaru Kamiya

JOURNAL OF PHYSICAL CHEMISTRY C   120 ( 15 )   7997 - 8004   2016.4

Nature-Inspired, Highly Durable CO2 Reduction System Consisting of a Binuclear Ruthenium(II) Complex and an Organic Semiconductor Using Visible Light Reviewed

Ryo Kuriki, Hironori Matsunaga, Takuya Nakashima, Keisuke Wada, Akira Yamakata, Osamu Ishitani, Kazuhiko Maeda

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY   138 ( 15 )   5159 - 5170   2016.4

KCl flux-induced growth of isometric crystals of cadmium-containing early transition-metal (Ti4+, Nb5+, and Ta5+) oxides and nitridability to form their (oxy)nitride derivatives under an NH3 atmosphere for water splitting application Reviewed

Mirabbos Hojamberdiev, Hajime Wagata, Kunio Yubuta, Kenta Kawashima, Junie Jhon M. Vequizo, Akira Yamakata, Shuji Oishi, Kazunari Domen, Katsuya Teshima

APPLIED CATALYSIS B-ENVIRONMENTAL   182   626 - 635   2016.3

Transient Absorption and FT-IR Analysis of the Carrier Dynamics of TiO2 Photocatalysts

Vequizo Junie Jhon, Matsunaga Hironori, Okamura Shou, Ohno Teruhisa, Yamakata Akira

表面科学学術講演会要旨集   36 ( 0 )   217 - 217   2016.1

Flux-mediated doping of SrTiO3 photocatalysts for efficient overall water splitting Reviewed

Yeilin Ham, Takashi Hisatomi, Yosuke Goto, Yosuke Moriya, Yoshihisa Sakata, Akira Yamakata, Jun Kubota, Kazunari Domen

JOURNAL OF MATERIALS CHEMISTRY A   4 ( 8 )   3027 - 3033   2016

Femto-second time-resolved absorption study on photocatalysts

Matsunaga Hironori, Vequizo Junie Jhon, Yamakata Akira

Abstract of annual meeting of the Surface Science of Japan   36   218 - 218   2016

Behavior of photogenerated charge carriers on metal-particle loaded photocatalysts studied by time-resolved absorption spectroscopy

Yamakata Akira

Abstract of annual meeting of the Surface Science of Japan   36   216 - 216   2016

Morphology-sensitive trapping states of photogenerated charge carriers on SrTiO3 particles studied by time-resolved visible to Mid-IR absorption spectroscopy: The effects of molten salt flux treatments Reviewed

Akira Yamakata, Ham Yeilin, Masayuki Kawaguchi, Takashi Hisatomi, Jun Kubota, Yoshihisa Sakata, Kazunari Domen

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY   313   168 - 175   2015.12

Distinctive Behavior of Photogenerated Electrons and Holes in Anatase and Rutile TiO2 Powders Reviewed

Akira Yamakata, Junie Jhon M. Vequizo, Hironori Matsunaga

JOURNAL OF PHYSICAL CHEMISTRY C   119 ( 43 )   24538 - 24545   2015.10

NH3-Assisted Flux Growth of Cube-like BaTaO2N Submicron Crystals in a Completely Ionized Nonaqueous High-Temperature Solution and Their Water Splitting Activity Reviewed

Mirabbos Hojamberdiev, Kunio Yubuta, Junie Jhon M. Vequizo, Akira Yamakata, Shuji Oishi, Kazunari Domen, Katsuya Teshima

CRYSTAL GROWTH & DESIGN   15 ( 9 )   4663 - 4671   2015.9

NH3-Assisted Flux-Mediated Direct Growth of LaTiO2N Crystallites for Visible-Light-Induced Water Splitting Reviewed

Kenta Kawashirna, Mirabbos Hojamberdiev, Hajirne Wagata, Kunio Yubuta, Junie Jhon M. Vequizo, Akira Yamakata, Shuji Oishi, Kazunari Domen, Katsuya Teshima

JOURNAL OF PHYSICAL CHEMISTRY C   119 ( 28 )   15896 - 15904   2015.7

時間分解可視中赤外分光法を用いた光励起キャリアーの反応活性評価

山方啓, 久保田純, 堂免一成

触媒   115   52 - 54   2015.3

Behavior and Energy State of Photogenerated Charge Carriers in Single-Crystalline and Polycrystalline Powder SrTiO3 Studied by Time-Resolved Absorption Spectroscopy in the Visible to Mid-Infrared Region Reviewed

Akira Yamakata, Junie Jhon M. Vequizo, Masayuki Kawaguchi

JOURNAL OF PHYSICAL CHEMISTRY C   119 ( 4 )   1880 - 1885   2015.1

Surface-enhanced IR absorption spectroscopy of the KcsA potassium channel upon application of an electric field Reviewed

Akira Yamakata, Hirofumi Shimizu, Shigetoshi Oiki

PHYSICAL CHEMISTRY CHEMICAL PHYSICS   17 ( 33 )   21104 - 21111   2015

Behavior and Energy States of Photogenerated Charge Carriers on Pt- or CoOx-Loaded LaTiO2N Photocatalysts: Time-Resolved Visible to Mid-Infrared Absorption Study Reviewed

Akira Yamakata, Masayuki Kawaguchi, Naoyuki Nishimura, Tsutomu Minegishi, Jun Kubota, Kazunari Domen

JOURNAL OF PHYSICAL CHEMISTRY C   118 ( 41 )   23897 - 23906   2014.10

電極界面におけるイオンの水和殻崩壊過程の時間分解赤外分光観察 Reviewed

山方啓, 大澤雅俊, 森田明弘

Electrochemistry 電気化学および工業物理化学   82 ( 9 )   771 - 776   2014.9

Behavior of Photogenerated Charge Carriers on Several Photocatalysts Studied by Time-resolved IR Absorption Spectroscopy. Reviewed

天野史章, 山方啓

触媒   56 ( 2 )   88 - 94   2014.4

Properties of N-H Local Vibration Modes in GaAsN Grown by Chemical Beam Epitaxy

Kazuma Ikeda, Akira Yamakata, Koushiro Demizu, Nobuaki Kojima, Oshio Ohshita, Masafumi Yamaguchi

2014 IEEE 40TH PHOTOVOLTAIC SPECIALIST CONFERENCE (PVSC)   1821 - 1824   2014

Effect of Particle Size on the Photocatalytic Activity of WO3 Particles for Water Oxidation Reviewed

Fumiaki Amano, Eri Ishinaga, Akira Yamakata

JOURNAL OF PHYSICAL CHEMISTRY C   117 ( 44 )   22584 - 22590   2013.11

Real-Time Observation of the Destruction of Hydration Shells Reviewed

Akira Yamakata, Eiji Soeta, Tatsuya Ishiyama, Masatoshi Osawa, Akihiro Morita

J. Am. Chem. Soc.   135 ( 40 )   977 - 988   2013.10

Real-Time Observation of the Destruction of Hydration Shells under Electrochemical Force Reviewed

Akira Yamakata, Eiji Soeta, Tatsuya Ishiyama, Masatoshi Osawa, Akihiro Morita

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY   135 ( 40 )   15033 - 15039   2013.10

Photocatalytic activity of titania particles calcined at high temperature: Investigating deactivation Reviewed

Fumiaki Amano, Masashi Nakata, Kenji Asami, Akira Yamakata

Chemical Physics Letters   579   111 - 113   2013.7

Structural changes of the KcsA potassium channel upon application of the electrode potential studied by surface-enhanced IR absorption spectroscopy Reviewed

Akira Yamakata, Hirofumi Shimizu, Masatoshi Osawa, Shigetoshi Oiki

CHEMICAL PHYSICS   419   224 - 228   2013.6

Electronically cross-linked PbS quantum dot networks using polymers as surface ligands Reviewed

Wei Lü, Yue Yang, Akira Yamakata, Itaru Kamiya

Nano   8 ( 2 )   1350013.1-1350013.7   2013.4

Cobalt-Modified Porous Single-Crystalline LaTiO2N for Highly Efficient Water Oxidation under Visible Light Reviewed

Fuxiang Zhang, Akira Yamakata, Kazuhiko Maeda, Yosuke Moriya, Tsuyoshi Takata, Jun Kubota, Katsuya Teshima, Shuji Oishi, Kazunari Domen

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY   134 ( 20 )   8348 - 8351   2012.5

Infrared Spectroscopic Study of the Potential Change at Cocatalyst Particles on Oxynitride Photocatalysts for Water Splitting by Visible Light Irradiation Reviewed

Xuwang Lu, Athula Bandara, Masao Katayama, Akira Yamakata, Jun Kubota, Kazunari Domen

JOURNAL OF PHYSICAL CHEMISTRY C   115 ( 48 )   23902 - 23907   2011.12

Effect of Photoexcited Electron Dynamics on Photocatalytic Efficiency of Bismuth Tungstate Reviewed

Fumiaki Amano, Akira Yamakata, Kohei Nogami, Masatoshi Osawa, Bunsho Ohtani

JOURNAL OF PHYSICAL CHEMISTRY C   115 ( 33 )   16598 - 16605   2011.8

Potential-Dependent Recombination Kinetics of Photogenerated Electrons in n- and p-Type GaN Photoelectrodes Studied by Time-Resolved IR Absorption Spectroscopy Reviewed

Akira Yamakata, Masaaki Yoshida, Jun Kubota, Masatoshi Osawa, Kazunari Domen

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY   133 ( 29 )   11351 - 11357   2011.7

Quantum Dots and Wells for Novel Light-Energy Conversions

YAMAKATA Akira

触媒   53 ( 3 )   201 - 201   2011.4

Structure and Behavior of Water at the Electrochemical Interface Studied by Surface-Enhanced Infrared Absorption Spectroscopy Reviewed

Masatshi Osawa, Akira Yamakata

BUNSEKI KAGAKU   60 ( 1 )   1 - 9   2011.1

Destruction of the Water Layer on a Hydrophobic Surface Induced by the Forced Approach of Hydrophilic and Hydrophobic Cations Reviewed

Akira Yamakata, Masatoshi Osawa

JOURNAL OF PHYSICAL CHEMISTRY LETTERS   1 ( 9 )   1487 - 1491   2010.5

Correlation between Photoexcited Electron Lifetimes and Photocatalytic Activities of Bismuth Tungstate Particles Reviewed

AMANO Fumiaki, YAMAKATA Akira, NOGAMI Kohei, OSAWA Masatoshi, OHTANI Bunsho

触媒   52 ( 2 )   128 - 130   2010.3

Dynamics of photogenerated charge carriers on photocatalysts for the water splitting reaction : relation between the carrier dynamics and the steady state reactions Reviewed

YAMAKATA Akira

分光研究 = Journal of the spectroscopical research of Japan   59 ( 1 )   12 - 19   2010.2

ATR-SEIRAS Investigation of the Fermi Level of Pt Cocatalyst on a GaN Photocatalyst for Hydrogen Evolution under Irradiation Reviewed

Masaaki Yoshida, Akira Yamakata, Kazuhiro Takanabe, Jun Kubota, Masatoshi Osawa, Kazunari Domen

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY   131 ( 37 )   13218 - 13219   2009.9

Photoexcited processes on metal surfaces : from gas/solid toward liquid/solid interfaces Reviewed

YAMAKATA Akira, OSAWA Masatoshi

Photochemistry   40 ( 2 )   78 - 84   2009.8

Destruction of the hydration shell around tetraaolkylammonium ions at the electrochemical interface Reviewed

Akira Yamakata, Masatoshi Osawa

Journal of the American Chemical Society   131 ( 20 )   6892 - 6893   2009.5

Acceleration of electrolysis of water by the adsorption of 4, 4'-bipyridine on Ag electrode : creation of reaction center by organic molecules Reviewed

UCHIDA Taro, YAMAKATA Akira, SASAKI Youichi, OSAWA Masatoshi

觸媒 = Catalyst   51 ( 2 )   129 - 131   2009.3

Electrocatalytic Reactions Studied by Time-resolved Surface-enhanced Infrared Spectroscopy Reviewed

SAMJESKE Gabor, YAMAKATA Akira, UCHIDA Taro, OSAWA Masatoshi

Journal of the Surface Science Society of Japan   30 ( 2 )   68 - 74   2009.2

Visible Light Responsive Pristine Metal Oxide Photocatalyst: Enhancement of Activity by Crystallization under Hydrothermal Treatment Reviewed

Fumiaki Amano, Akira Yamakata, Kohei Nogami, Masatoshi Osawa, Bunsho Ohtani

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY   130 ( 52 )   17650 - +   2008.12

Dynamics of the Electric Double Layer of CO-covered Pt Electrode Reviewed

YAMAKATA Akira, OSAWA Masatoshi

J. Surf. Sci. Soc. Jpn.   29 ( 9 )   526 - 531   2008.9

Hydrogen evolution reaction catalyzed by proton-coupled redox cycle of 4,4 &apos;-bipyridine monolayer adsorbed on silver electrodes Reviewed

Taro Uchida, Hirokazu Mogami, Akira Yamakata, Yoichi Sasaki, Masatoshi Osawa

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY   130 ( 33 )   10862 - +   2008.8

Dynamics of double-layer restructuring on a platinum electrode covered by CO: Laser-induced potential transient measurement Reviewed

Akira Yamakata, Masatoshi Osawa

JOURNAL OF PHYSICAL CHEMISTRY C   112 ( 30 )   11427 - 11432   2008.7

Surface-enhanced infrared absorption spectroscopic studies of adsorbed nitrate, nitric oxide, and related compounds 1: Reduction of adsorbed NO on a platinum electrode Reviewed

Kou Nakata, Akinori Okubo, Katsuaki Shimazu, Akira Yamakata, Shen Ye, Masatoshl Osawa

LANGMUIR   24 ( 8 )   4352 - 4357   2008.4

Surface-enhanced infrared absorption spectroscopic studies of adsorbed nitrate, nitric oxide, and related compounds 2: Nitrate ion adsorption at a platinum electrode Reviewed

Kou Nakata, Yota Kayama, Katsuaki Shimazu, Akira Yamakata, Shen Ye, Masatoshi Osawa

LANGMUIR   24 ( 8 )   4358 - 4363   2008.4

Structure of water at the electrified platinum-water interface: A study by surface-enhanced infrared absorption spectroscopy Reviewed

Masatoshi Osawa, Minoru Tsushima, Hirokazu Mogami, Gabor Samjeske, Akira Yamakata

JOURNAL OF PHYSICAL CHEMISTRY C   112 ( 11 )   4248 - 4256   2008.3

表面増強赤外吸収分光法による電極界面の超高速ダイナミクスの追跡 Reviewed

山方 啓, 大澤 雅俊

Electrochemistry 電気化学および工業物理化学 : denki kagaku   76 ( 3 )   208 - 213   2008.3

固液界面の水分子の構造とエネルギー移動ダイナミクス Reviewed

山方 啓

分光研究   57 ( 1 )   23 - 24   2008

Time-resolved infrared absorption study of nine TiO2 photocatalysts Reviewed

Akira Yamakata, Taka-aki Ishibashi, Hiroshi Onishi

CHEMICAL PHYSICS   339 ( 1-3 )   133 - 137   2007.10

How the Molecules Reach the Reaction Center? Reviewed

YAMAKATA AKIRA

触媒 = Catalysts & Catalysis   48 ( 8 )   611 - 611   2006.12

Laser-induced potential jump at the electrochemical interface probed by picosecond time-resolved surface-enhanced infrared absorption spectroscopy Reviewed

A Yamakata, T Uchida, J Kubota, M Osawa

JOURNAL OF PHYSICAL CHEMISTRY B   110 ( 13 )   6423 - 6427   2006.4

Study on photogenerated charge carriers dynamics in sulfur-doped titanium dioxide by transient IR absorption Reviewed

Kan Takeshita, Akira Yamakata, Taka-aki Ishibashi, Hiroshi Onishi, Kazumoto Nishijima, Teruhisa Ohno

J. photochem. Photobiol. B. Chemistry   117   269 - 275   2006.4

Adsorbed structures of 4,4 '-bipyridine on Cu(111) in acid studied by STM and IR Reviewed

YX Diao, MJ Han, LJ Wan, K Itaya, T Uchida, H Miyake, A Yamakata, M Osawa

LANGMUIR   22 ( 8 )   3640 - 3646   2006.4

Transient IR absorption study of charge carriers photogenerated in sulfur-doped TiO2 Reviewed

K Takeshita, A Yamakata, T Ishibashi, H Onishi, K Nishijima, T Ohno

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY   177 ( 2-3 )   269 - 275   2006.1

Potential oscillations in galvanostatic electrooxidation of formic acid on platinum: A time-resolved surface-enhanced infrared study Reviewed

G Samjeske, A Miki, S Ye, A Yamakata, Y Mukouyama, H Okamoto, M Osawa

JOURNAL OF PHYSICAL CHEMISTRY B   109 ( 49 )   23509 - 23516   2005.12

Time-Resolved IR Absorption Study on Solid Surfaces Reviewed

YAMAKATA AKIRA, OSAWA MASATOSHI

触媒 = Catalysts & Catalysis   47 ( 5 )   334 - 340   2005.8

Time-resolved infrared absorption study of photochemical reactions over metal oxides Reviewed

A Yamakata, T Ishibashi, K Takeshita, H Onishi

TOPICS IN CATALYSIS   35 ( 3-4 )   211 - 216   2005.7

Carrier dynamics in TiO2 and Pt/TiO2 powders observed by femtosecond time-resolved near-infrared spectroscopy at a spectral region of 0.9-1.5 mu m with the direct absorption method Reviewed

K Iwata, T Takaya, H Hamaguchi, A Yamakata, TA Ishibashi, H Onishi, H Kuroda

JOURNAL OF PHYSICAL CHEMISTRY B   108 ( 52 )   20233 - 20239   2004.12

In situ surface-enhanced infrared study of hydrogen bond pairing of complementary nucleic acid bases at the electrochemical interface Reviewed

Y Sato, H Noda, F Mizutani, A Yamakata, M Osawa

ANALYTICAL CHEMISTRY   76 ( 18 )   5564 - 5569   2004.9

Effect of annealing temperature on back electron transfer and distribution of deep trap sites in dye-sensitized TiO2, studied by time-resolved infrared spectroscopy Reviewed

K Takeshita, Y Sasaki, M Kobashi, Y Tanaka, S Maeda, A Yamakata, TA Ishibashi, H Onishi

JOURNAL OF PHYSICAL CHEMISTRY B   108 ( 9 )   2963 - 2969   2004.3

Photodynamics of NaTaO3 catalysts for efficient water splitting Reviewed

A Yamakata, T Ishibashi, H Kato, A Kudo, H Onishi

JOURNAL OF PHYSICAL CHEMISTRY B   107 ( 51 )   14383 - 14387   2003.12

Effects of water addition on the methanol oxidation on Pt/TiO2 photocatalyst studied by time-resolved infrared absorption spectroscopy Reviewed

A Yamakata, TA Ishibashi, J Onishi

JOURNAL OF PHYSICAL CHEMISTRY B   107 ( 36 )   9820 - 9823   2003.9

Time-Resolved Infrared Absorption Study of Reaction Intermediate on Pt/TiO_2 Photocatalyst Reviewed

YAMAKATA Akira, ISHIBASHI Taka-aki, ONISHI Hiroshi

J. Surf. Sci. Soc. Jpn.   24 ( 9 )   563 - 567   2003.9

Effects of accumulated electrons on the decay kinetics of photogenerated electrons in Pt/TiO2 photocatalyst studied by time-resolved infrared absorption spectroscopy Reviewed

A Yamakata, TA Ishibashi, H Onishi

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY   160 ( 1-2 )   33 - 36   2003.8

Microsecond kinetics of photocatalytic oxidation on Pt/TiO2 traced by vibrational spectroscopy Reviewed

A Yamakata, T Ishibashi, H Onishi

CHEMICAL PHYSICS LETTERS   376 ( 5-6 )   576 - 580   2003.7

Photophysics and electron dynamics in dye-sensitized semiconductor film studied by time-resolved mid-IR spectroscopy Reviewed

Kan Takeshita, Yutaka Sasaki, Masahiro Kobashi, Yuki Tanaka, Shuichi Maeda, Akira Yamakata, Taka-Aki Ishibashi, Hiroshi Onishi

Journal of Physical Chemistry B   107 ( 17 )   4156 - 4161   2003.5

Kinetics of the photocatalytic water-splitting reaction on TiO2 and Pt/TiO2 studied by time-resolved infrared absorption spectroscopy Reviewed

A Yamakata, T Ishibashi, H Onishi

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL   199 ( 1-2 )   85 - 94   2003.5

Photophysics and electron dynamics in dye-sensitized semiconductor film studied by time-resolved mid-IR spectroscopy Reviewed

K Takeshita, Y Sasaki, M Kobashi, Y Tanaka, S Maeda, A Yamakata, T Ishibashi, H Onishi

JOURNAL OF PHYSICAL CHEMISTRY B   107 ( 17 )   4156 - 4161   2003.5

Studies on the electron transfer reaction between TiO_2 and adsorbed dyes by time-resolved infrared spectroscopy

TAKESHITA Kan, SASAKI Yutaka, KOBASHI Masahiro, TANAKA Yuki, MAEDA Shuichi, YAMAKATA Akira, ISHIBASHI Taka-aki, ONISHI Hiroshi

触媒   45 ( 2 )   181 - 183   2003.3

Electron-and Hole-transfer from TiO_2 Particles to Adsorbates Studied by Time-Resolved Infrared Absorption Spectroscopy Reviewed

YAMAKATA Akira, ISHIBASHI Takaki, ONISHI Hiroshi

J. Surf. Sci. Soc. Jpn.   24 ( 1 )   46 - 52   2003.1

Pressure dependence of electron- and hole-consuming reactions in photocatalytic water splitting on Pt/TiO2 studied by time-resolved IR absorption spectroscopy Reviewed

A Yamakata, T Ishibashi, H Onishi

INTERNATIONAL JOURNAL OF PHOTOENERGY   5 ( 1 )   7 - 9   2003

Time-resolved infrared absorption study of electron- and hole-capture reactions on photoexcited Pt/TiO2 in the presence of methanol-water vapor mixture Reviewed

A Yamakata, TA Ishibashi, H Onishi

SCIENCE AND TECHNOLOGY IN CATALYSIS 2002   145   157 - 160   2003

Microscopic identification of a bimolecular reaction intermediate Reviewed

Hiroshi Uetsuka, Akira Sasahara, Akira Yamakata, Hiroshi Onishi

Journal of Physical Chemistry B   106 ( 44 )   11549 - 11552   2002.11

Microscopic identification of a bimolecular reaction intermediate Reviewed

H Uetsuka, A Sasahara, A Yamakata, H Onishi

JOURNAL OF PHYSICAL CHEMISTRY B   106 ( 44 )   11549 - 11552   2002.11

Electron- and hole-capture reactions on Pt/TiO2 photocatalyst exposed to methanol vapor studied with time-resolved infrared absorption spectroscopy Reviewed

Akira Yamakata, Taka-Aki Ishibashi, Hiroshi Onishi

Journal of Physical Chemistry B   106 ( 35 )   9122 - 9125   2002.9

Electron- and hole-capture reactions on Pt/TiO2 photocatalyst exposed to methanol vapor studied with time-resolved infrared absorption spectroscopy Reviewed

A Yamakata, T Ishibashi, H Onishi

JOURNAL OF PHYSICAL CHEMISTRY B   106 ( 35 )   9122 - 9125   2002.9

Time-resolved infrared absorption studies of surface OH groups on TiO2 particles irradiated by UV pulses Reviewed

A Yamakata, T Ishibashi, H Onishi

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN   75 ( 5 )   1019 - 1022   2002.5

時間分解赤外分光法を用いた二酸化チタン上の光励起電子と吸着分子への電荷移動反応の観察 Reviewed

山方 啓, 石橋 孝章, 大西 洋

触媒   43 ( 6 )   396 - 398   2001.9

Water- and oxygen-induced decay kinetics of photogenerated electrons in TiO2 and Pt/TiO2: A time-resolved infrared absorption study Reviewed

A Yamakata, T Ishibashi, H Onishi

JOURNAL OF PHYSICAL CHEMISTRY B   105 ( 30 )   7258 - 7262   2001.8

Time-resolved infrared absorption spectroscopy of photogenerated electrons in platinized TiO2 particles Reviewed

A Yamakata, T Ishibashi, H Onishi

CHEMICAL PHYSICS LETTERS   333 ( 3-4 )   271 - 277   2001.1

Transport channels of X-ray beamlines at SPring-8

Goto, S, Ohashi, H, Takeshita, K, Yabashi, M, Yamakata, A, Asano, Y, Ishikawa, T

Nuclear Instruments &amp; Methods in Physics Research Section a-Accelerators Spectrometers Detectors and Associated Equipment   467   2001

Transport channels of X-ray beamlines at SPring-8

Akira Yamakata

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment   2001

Exchange reaction of formate with gas-phase acetic acid on Ni(110) Reviewed

A Yamakata, J Kubota, JN Kondo, C Hirose, K Domen, F Wakabayashi, K Tamaru

SURFACE SCIENCE   433   210 - 214   1999.8

In situ observation of the exchange reaction of formate with molecular formic acid on Ni(110) Reviewed

A Yamakata, J Kubota, JN Kondo, C Hirose, K Domen, F Wakabayashi, K Tamaru

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL   141 ( 1-3 )   73 - 82   1999.5

Exchange reaction of adsorbed formate with gaseous formic acid on Ni(110) studied by time-resolved Fourier transform infrared reflection absorption spectroscopy Reviewed

A Yamakata, J Kubota, JN Kondo, C Hirose, K Domen, F Wakabayashi, K Tamaru

JOURNAL OF PHYSICAL CHEMISTRY B   102 ( 22 )   4401 - 4403   1998.5

The IRAS Study of the Exchange Reaction of Formate with Gaseous Formic Acid on Ni(110) Reviewed

YAMAKATA Akira, KUBOTA Jun, NOMURA Junko, HIROSE Chiaki, DOMEN Kazunari, WAKABAYASHI Fumitaka

J. Surf. Sci. Soc. Jpn.   19 ( 7 )   441 - 445   1998

An IRAS Study of the Decomposition of Formate Adsorbed on Ni(110) Reviewed

YAMAKATA Akira, KUBOTA Jun, NOMURA Junko, HIROSE Chiaki, DOMEN Kazunari, WAKABAYASHI Fumitaka

Journal of the Surface Science Society of Japan   18 ( 7 )   417 - 423   1997.7

In situ observation of the dehydration of formate on Ni(110) Reviewed

A Yamakata, J Kubota, JN Kondo, C Hirose, K Domen, F Wakabayashi

JOURNAL OF PHYSICAL CHEMISTRY B   101 ( 26 )   5177 - 5181   1997.6

Isotope exchange reaction of formate with molecular hydrogen on Ni(110) by IRAS Reviewed

A Yamakata, J Kubota, JN Kondo, K Domen, C Hirose

JOURNAL OF PHYSICAL CHEMISTRY   100 ( 46 )   18177 - 18182   1996.11

SFG study of formic acid on a Pt(110)-(1x2) surface Reviewed

N Watanabe, K Iwatsu, A Yamakata, T Ohtani, J Kubota, JN Kondo, A Wada, K Domen, C Hirose

SURFACE SCIENCE   357 ( 1-3 )   651 - 655   1996.6

触媒技術の動向と展望2010

Akira Yamakata（ Role： Joint author ,  第3-8章 時間分解赤外分光法を用いた触媒反応ダイナミクス －光触媒の光励起ダイナミクス－）

触媒学会  2010.4 

太陽電池と部材の開発・製造技術～構造・プロセスから見る、耐久性向上・高効率化を目指した各種事例～

Akira Yamakata（ Role： Joint author ,  第4-3項 太陽電池用TiO2透明導電膜の製造技術）

㈱情報機構  2010.3 

色材・顔料・色素の設計と開発ー発色・着色メカニズムから各種応用製品まで

Akira Yamakata（ Role： Joint author ,  第2-4章 酸化チタン）

㈱情報機構  2008.2 

Naイオンを添加したSrTiO₃の水の完全分解反応に対する光触媒特性

酒多喜久, 三好喜子, 田中修平, 前田竜也, 田中英之, 今村速夫, YEILIN Ham, 久富隆史, 久保田純, 堂免一成, 山方啓

触媒討論会討論会A予稿集   112th   2013

光励起キャリアーの動きとエネルギー制御

山方啓

化学経済   58 ( 14 )   75   2011.12

Hydrogen Evolution Reaction Catalyzed by 4,4'-Bipyridine Adsorbed on Metal Electrodes: A Combined Infrared and DFT Study Reviewed

Taro Uchida, Akira Yamakata, Yoichi Sasaki, Masatoshi Osawa

ECS Meeting Abstracts   2011.5

News Letter International journal

Photonics Spectra Magazine   2010.7

電極表面に吸着した4,4’ビピリジンが触媒する水素発生促進反応機構

内田太郎, 山方啓, 佐々木陽一, 大澤雅俊

電気化学秋季大会講演要旨集   2009   2009

Hydrogen Evolution Reaction Catalyzed by The Redox Cycle of 4,4’-Bipyridine Adsorbed on Ag electrode

内田太郎, 山方啓, 佐々木陽一, 大澤雅俊

日本化学会講演予稿集   89th ( 1 )   2009

Enhanced Hydrogen Evolution Reaction on an Ag Electrode Catalyzed by Proton-coupled Redox of 4,4'-Bipyridine Adsorbed on the Surface Reviewed

Uchida, T, Mogami, H, Yamakata, A, Sasaki, Y, Osawa, M

ECS Meeting Abstracts   2008

電極表面への4,4′-ビピリジンの吸着に伴なう水素発生の促進:表面増強赤外吸収分光による検討

内田太郎, 山方啓, 大澤雅俊

電気化学会大会講演要旨集   74th   2007

ビピリジン電極修飾による電解水素発生の促進効果

内田太郎, 山方啓, 大澤雅俊

触媒討論会討論会A予稿集   100th   2007

表面増強赤外吸収分光による吸着水素が関与した4,4′-ビピリジンの酸化還元反応の追跡

内田太郎, 山方啓, 大澤雅俊

日本化学会北海道支部研究発表会講演要旨集   2007   2007

光触媒反応の活性向上を目指した欠陥制御 Invited

山方 啓

公益社団法人日本セラミックス協会 第 37 回秋季シンポジウム  2024.9.10 

Minimizing Voltage Loss of Organic Photovoltaics by Local Dipole Moment Change of Non-Fullerene Acceptors Invited

Akira Yamakata

ICPAC MONGOLIA 2024  2024.8.29 

Defects Engineering for the Enhancement of Photocatalytic Reactions

Akira Yamakata

Taiwan International Conference on Catalysis 2024 (TICC 2024)  2024.6.20 

Curious Behaviors of Photogenerated Charge Carriers on Particulate Photocatalysts Invited

Akira Yamakata

AI-Mat International Workshop: Sustainable Energy Materials  2024.6.19 

Charge Separation Processes in Non-Fullerene Acceptors Studied By Time-Resolved IR Invited

Akira Yamakata

245th Meeting of the Electrochemical Society  2024.5.26 

時間分解赤外分光法を用いた光触媒と有機太陽電池の動作機構解明 Invited

山方啓

日本分光学会・赤外ラマン分光部会シンポジウム「機能性分子・材料の赤外ラマン分光による解析」  2024.3.8 

Femtosecond time-resolved IR absorption study of the charge carrier dynamics in NFAs Invited

Akira Yamakata

International Symposium on Dynamic Exciton (ISDyEx) and International Symposium on Chiral Nanostructures for Photonique Applications  2023.12 

Binding States of Photogenerated Charge Carriers in Non-Fullerene Acceptors Studied by Broadband Transient Absorption Spectroscopy Invited

Akira Yamakata

International Symposium on Dynamic Exciton (ISDyEx)  2023.11 

Defects for the Enhancement of Photocatalytic Activity Invited

Akira Yamakata

The 28th North American Catalysis Society Meeting  2023.6