Niigata University   Faculty of Education   Research Assistant

1996.4 - 1997.3

Configurationally Nonselective Aquation of a Mononuclear Ru(II) Chloro Complex to Aquo Complex Isomers with Distinctive Aspects in Photoisomerization, Redox, and Catalytic Water Oxidation

Yuta Tsubonouchi, Keisuke Inaba, Norihisa Hoshino, Masanari Hirahara, Debraj Chandra, Zaki N. Zahran, Masayuki Yagi

Inorganic Chemistry   2023.10

Mechanistic insight into efficient electrocatalysis for hydrogen evolution by a platinum film prepared on an FTO electrode using a mixed metal-imidazole casting method

Zaki N. Zahran, Eman A. Mohamed, Tomohiro Katsuki, Yuta Tsubonouchi, Debraj Chandra, Norihisa Hoshino, Masayuki Yagi

International Journal of Hydrogen Energy   2023.8

Temperature-Controlled Transformation of WO₃ Nanowires into Active Facets-Exposed Hexagonal Prisms toward Efficient Visible-Light-Driven Water Oxidation

Debraj Chandra, Tomohiro Katsuki, Yuki Tanahashi, Takanari Togashi, Yuta Tsubonouchi, Norihisa Hoshino, Zaki N. Zahran, Masayuki Yagi

ACS Applied Materials & Interfaces   15 ( 17 )   20885 - 20896   2023.4

p–n junction formation between CoPi and α-Fe₂O₃ layers enhanced photo-charge separation and catalytic efficiencies for efficient visible-light-driven water oxidation

Tomohiro Katsuki, Zaki N. Zahran, Yuta Tsubonouchi, Debraj Chandra, Norihisa Hoshino, Masayuki Yagi

Sustainable Energy & Fuels   7 ( 12 )   2910 - 2922   2023

Distinctive Aspects in Aquation, Proton-Coupled Redox, and Photoisomerization Reactions between Geometric Isomers of Mononuclear Ruthenium Complexes with a Large-π-Conjugated Tetradentate Ligand

Yuta Tsubonouchi, Takeumi Watanabe, Kazuha Yoshida, Shunsuke Watabe, Keisuke Inaba, Masanari Hirahara, Tsubasa Hatanaka, Yasuhiro Funahashi, Debraj Chandra, Norihisa Hoshino, Zaki N. Zahran, Masayuki Yagi

Inorganic Chemistry   61 ( 35 )   13956 - 13967   2022.8

Perfect Matching Factor between a Customized Double-Junction GaAs Photovoltaic Device and an Electrolyzer for Efficient Solar Water Splitting

Zaki N. Zahran, Yugo Miseki, Eman A. Mohamed, Yuta Tsubonouchi, Kikuo Makita, Takeyoshi Sugaya, Kazuhiro Sayama, Masayuki Yagi

ACS Applied Energy Materials   5 ( 7 )   8241 - 8253   2022.7

Highly Efficient and Durable Electrocatalysis by a Molecular Catalyst with Long Alkoxyl Chains Immobilized on a Carbon Electrode for Water Oxidation

Yuta Tsubonouchi, Taichi Hayasaka, Yuki Wakai, Eman. A. Mohamed, Zaki N. Zahran, Masayuki Yagi

ACS Applied Materials & Interfaces   14 ( 13 )   15154 - 15164   2022.3

Bipyridine-based polybenzimidazole as a nitrogen-rich ionomer and a platinum nanoparticle support for enhanced fuel cell performance

Mohamed R. Berber, Asma M. Alenad, Numa A. Althubiti, Ziyad A. Alrowaili, Zaki N. Zahran, Masayuki Yagi

Fuel   312   122954 - 122954   2022.3

Nickel Sulfate as an Influential Precursor of Amorphous High-Valent Ni(III) Oxides for Efficient Water Oxidation in Preparation via a Mixed Metal-Imidazole Casting Method

Zaki N. Zahran, Eman A. Mohamed, Tomohiro Katsuki, Yuta Tsubonouchi, Masayuki Yagi

ACS Applied Energy Materials   5 ( 2 )   1894 - 1904   2022.1

Characterization of electrocatalytic proton reduction and surface adsorption of platinum nanoparticles supported by a polymeric stabilizer on an ITO electrode

Yuta Tsubonouchi, Masashi Kajita, Taichi Hayasaka, Hamada S. Mandour, Mohamed R. Berber, Zaki N. Zahran, Masayuki Yagi

Sustainable Energy & Fuels   6 ( 3 )   815 - 821   2022

A highly efficient and stable platinum film deposited <i>via</i> a mixed metal-imidazole casting method as a benchmark cathode for electrocatalytic hydrogen evolution

Zaki N. Zahran, Eman A. Mohamed, Tomohiro Katsuki, Yuta Tsubonouchi, Debraj Chandra, Norihisa Hoshino, Masayuki Yagi

Sustainable Energy &amp; Fuels   6 ( 18 )   4265 - 4274   2022

Mechanism of H+ dissociation–induced O–O bond formation via intramolecular coupling of vicinal hydroxo ligands on low-valent Ru(III) centers

Yuki Tanahashi, Kosuke Takahashi, Yuta Tsubonouchi, Shunsuke Nozawa, Shin-ichi Adachi, Masanari Hirahara, Eman A. Mohamed, Zaki N. Zahran, Kenji Saito, Tatsuto Yui, Masayuki Yagi

Proceedings of the National Academy of Sciences   118 ( 52 )   e2113910118 - e2113910118   2021.12

Mechanisms of Photoisomerization and Water Oxidation Catalysis of Ruthenium(II) Aquo Complexes Reviewed

Yuta Tsubonouchi, Eman A. Mohamed, Zaki N. Zahran, Masayuki Yagi

Ruthenium - an Element Loved by Researchers [Working Title]   2021.9

Facile Fabrication of a Highly Crystalline and Well-Interconnected Hematite Nanoparticle Photoanode for Efficient Visible-Light-Driven Water Oxidation Reviewed

Tomohiro Katsuki, Zaki N. Zahran, Kou Tanaka, Tatsuya Eo, Eman A. Mohamed, Yuta Tsubonouchi, Mohamed R. Berber, Masayuki Yagi

ACS Applied Materials & Interfaces   13 ( 33 )   39282 - 39290   2021.8

Highly Efficient Electrocatalytic Water Oxidation by a Transparent Ordered Mesoporous Film of Intermediate IrOx(OH)y Reviewed

Debraj Chandra, Tomohiro Katsuki, Takeshi Masaki, Naoto Abe, Kenji Saito, Tatsuto Yui, Masayuki Yagi

ACS Applied Energy Materials   4 ( 5 )   4355 - 4364   2021.5

Highly selective electrocatalysis for carbon dioxide reduction to formic acid by a Co(II) complex with an equatorial N4 ligand Reviewed

Yuta Tsubonouchi, Daiki Takahashi, Mohamed R. Berber, Eman A. Mohamed, Zaki N. Zahran, Asma M. Alenad, Numa A. Althubiti, Masayuki Yagi

Electrochimica Acta   138545 - 138545   2021.5

Handy Protocol of Nitrogen-Doped BiVO4 Photoanode for Visible Light-Driven Water Oxidation Reviewed

Tatsuya Eo, Tomohiro Katsuki, Mohamed R. Berber, Zaki N. Zahran, Eman A. Mohamed, Yuta Tsubonouchi, Asma M. Alenad, Numa A. Althubiti, Masayuki Yagi

ACS Applied Energy Materials   4 ( 4 )   2983 - 2989   2021.4

Concisely Synthesized FeNiWOx Film as a Highly Efficient and Robust Catalyst for Electrochemical Water Oxidation Reviewed

Zaki N. Zahran, Eman A. Mohamed, Yuta Tsubonouchi, Manabu Ishizaki, Takanari Togashi, Masato Kurihara, Kenji Saito, Tatsuto Yui, Masayuki Yagi

ACS Applied Energy Materials   4 ( 2 )   1410 - 1420   2021.2

Electrocatalytic water splitting with unprecedentedly low overpotentials by nickel sulfide nanowires stuffed into carbon nitride scabbards Reviewed

Zaki Zahran, Eman Mohamed, Yuta Tsubonouchi, Manabu Ishizaki, Takanari Togashi, Masato Kurihara, Kenji Saito, Tatsuto Yui, Masayuki Yagi

Energy & Environmental Science   14 ( 10 )   5358 - 5365   2021

Mechanism of proton dissociation-induced O-O bond formation via intramolecular coupling of vicinal hydroxoes on ruthenium(III) centers Reviewed

Y. Tanahashi, K. Takahashi, Y. Tsubonouchi, M. Hirahara, E. A. Mohamed, Z. N. Zahran, K. Saito, T. Yui, M. Yagi

Proc. Natl. Acad. Sci. U. S. A   2021

High Potential-Applied Catalyst Behavior of a Mononuclear Ruthenium(II) Complex on a Mesoporous ITO Electrode for Water Oxidation Reviewed

Yuta Tsubonouchi, Yuki Tanahashi, Tatsuya Eo, Junichiro Honta, Taisei Sato, Eman A. Mohamed, Zaki N. Zahran, Kenji Saito, Tatsuto Yui, Masayuki Yagi

Journal of The Electrochemical Society   167 ( 16 )   166515 - 166515   2020.12

Efficient Electrocatalytic Water Oxidation by a Dinuclear Ruthenium(II) Complex with Vicinal Aquo and Hydroxo Groups Adsorbed on a TiO2 Electrode Reviewed

Yuki Tanahashi, Sho Nagai, Yuta Tsubonouchi, Masanari Hirahara, Taisei Sato, Eman A. Mohamed, Zaki N. Zahran, Kenji Saito, Tatsuto Yui, Masayuki Yagi

ACS Applied Energy Materials   3 ( 12 )   12172 - 12184   2020.12

FeNi-Layered Double-Hydroxide Nanoflakes with Potential for Intrinsically High Water-Oxidation Catalytic Activity Reviewed

Manabu Ishizaki, Hiroya Tanno, Hikaru Sutoh, Tomohiro Katsuki, Taichi Hayasaka, Masayuki Yagi, Yuta Tsubonouchi, Kazuki Tajima, Tohru Kawamoto, Yusuke Sakuda, Masato Kurihara

ACS Applied Energy Materials   3 ( 9 )   9040 - 9050   2020.9

Molecular aspects, electrochemical properties and water oxidation catalysis on a nanoporous TiO<inf>2</inf> electrode anchoring a mononuclear ruthenium(II) aquo complex Reviewed

Yuta Tsubonouchi, Tatsuya Eo, Junichiro Honta, Taisei Sato, Eman A. Mohamed, Zaki N. Zahran, Kenji Saito, Tatsuto Yui, Masayuki Yagi

Journal of Photochemistry and Photobiology A: Chemistry   400   2020.9

Highly Efficient and Selective Electrocatalytic CO2-to-CO Conversion by a Non-heme Iron Complex with an In-Plane N-4 Ligand in Heterogeneous Aqueous Media Reviewed

Eman A. Mohamed, Zaki N. Zahran, Yuta Tsubonouchi, Kenji Saito, Tatsuto Yui, Masayuki Yagi

ACS APPLIED ENERGY MATERIALS   3 ( 5 )   4114 - 4120   2020.5

Multi-potential-step chronocoulospectrometry for electrocatalytic water oxidation by a mononuclear ruthenium aquo complex immobilized on a mesoporous ITO electrode. Reviewed International journal

Yuta Tsubonouchi, Junichiro Honta, Taisei Sato, Eman A Mohamed, Zaki N Zahran, Kenji Saito, Tatsuto Yui, Masayuki Yagi

Dalton transactions (Cambridge, England : 2003)   49 ( 5 )   1416 - 1423   2020.2

A multi-stimuli responsive ruthenium complex for catalytic water oxidation

Masanari Hirahara, Hiroki Goto, Masayuki Yagi, Yasushi Umemura

Chemical Communications   56 ( 84 )   12825 - 12828   2020

Characterization and Mechanism of Efficient Visible-Light-Driven Water Oxidation on an in Situ N-2-Intercalated WO3 Nanorod Photoanode Reviewed

Debraj Chandra, Dong Li, Tetsuya Sato, Yuki Tanahashi, Takanari Togashi, Manabu Ishizaki, Masato Kurihara, Eman A. Mohamed, Yuta Tsubonouchi, Zaki N. Zahran, Kenji Saito, Tatsuto Yui, Masayuki Yagi

ACS SUSTAINABLE CHEMISTRY & ENGINEERING   7 ( 21 )   17896 - 17906   2019.11

Critical Hammett Electron-Donating Ability of Substituent Groups for Efficient Water Oxidation Catalysis by Mononuclear Ruthenium Aquo Complexes Reviewed

Watabe Shunsuke, Tanahashi Yuki, Hirahara Masanari, Yamazaki Hirosato, Takahashi Kosuke, Mohamed Eman A, Tsubonouchi Yuta, Zahran Zaki N, Saito Kenji, Yu Tatsuto, Yagi Masayuki

INORGANIC CHEMISTRY   58 ( 19 )   12716 - 12723   2019.10

Recent Advances in the Development of Molecular Catalyst‐Based Anodes for Water Oxidation toward Artificial Photosynthesis Reviewed

Zaki N Zahran, Yuta Tsubonouchi, Eman A Mohamed, Masayuki Yagi

ChemSusChem   12 ( 9 )   1775 - 1793   2019.5

Photoisomerization and thermal isomerization of ruthenium aqua complexes with chloro-substituted asymmetric bidentate ligands

M. Hirahara, H. Goto, R. Yamamoto, M. Yagi, Y. Umemura

RSC Adv.   9 ( 12 )   16838 - 16846   2019

Facile fabrication and nanostructure control of mesoporous iridium oxide films for efficient electrocatalytic water oxidation Reviewed

Debraj Chandra, Tetsuya Sato, Yuki Tanahashi, Ryouchi Takeuchi, Masayuki Yagi

Energy   173   278 - 289   2019

Recent advances in the development of molecular catalyst-based anodes for water oxidation toward artificial photosynthesis Reviewed

Z. N. Zahran, Y. Tsubonouchi, E. A. Mohamed, M. Yagi

ChemSusChem   12 ( 9 )   1775 - 1793   2019

Critical Hammett electron-donating ability of substituent groups for efficient water oxidation catalysis by mononuclear ruthenium aquo complexes

S. Watabe, Y. Tanahashi, M. Hirahara, H. Yamazaki, K. Takahashi, E. A. Mohamed, Y. Tsubonouchi, Z. N. Zahran, K. Saito, T. Yui, M. Yagi

Inorg. Chem.   58   12716 - 12723   2019

Facile and sustainable fabrication of transparent mesoporous IrOx films formed by nanoparticles assembly for efficient electrocatalytic water oxidation Reviewed

D. Chandra, T. Sato, N. Abe, K. Saito, T. Yui, M. Yagi

Sustainable Energy Fuels   in press   2019

Facile and sustainable fabrication of transparent mesoporous IrO_x films formed by nanoparticle assembly for efficient electrocatalytic water oxidation

Debraj Chandra, Tsubasa Sato, Naoto Abe, Kenji Saito, Tatsuto Yui, Masayuki Yagi

Sustainable Energy &amp; Fuels   3 ( 12 )   3489 - 3497   2019

An efficient catalyst film fabricated by electrophoretic deposition of cobalt hydroxide for electrochemical water oxidation Reviewed

Ryouchi Takeuchi, Tetsuya Sato, Takeshi Masaki, Kaoru Aiso, Debraj Chandra, Kenji Saito, Tatsuto Yui, Masayuki Yagi

Journal of Photochemistry and Photobiology A: Chemistry   358   395 - 401   2018.5

Visible Light-Driven Water Oxidation on an In Situ N2-Intercalated WO3 Nanorod Photoanode Synthesized by a Dual-Functional Structure-Directing Agent Reviewed

Dong Li, Ryouchi Takeuchi, Debraj Chandra, Kenji Saito, Tatsuto Yui, Masayuki Yagi

ChemSusChem   11 ( 7 )   1151 - 1156   2018.4

Cover Feature: Visible Light-Driven Water Oxidation on an In Situ N₂ -Intercalated WO₃ Nanorod Photoanode Synthesized by a Dual-Functional Structure-Directing Agent (ChemSusChem 7/2018)

Dong Li, Ryouchi Takeuchi, Debraj Chandra, Kenji Saito, Tatsuto Yui, Masayuki Yagi

ChemSusChem   11 ( 7 )   1134 - 1134   2018.3

Facile Templateless Fabrication of a Cobalt Oxyhydroxide Nanosheet Film with Nanoscale Porosity as an Efficient Electrocatalyst for Water Oxidation Reviewed

Chandra Debraj, Tanaka Kou, Takeuchi Ryouchi, Abe Naoto, Togashi Takanari, Kurihara Masato, Saito Kenji, Yui Tatsuto, Yagi Masayuki

CHEMPHOTOCHEM   2 ( 3 )   332 - 339   2018.3

Preparation of Stable Silver Nanoparticles Having Wide Red-To-Near-Infrared Extinction Reviewed

Kawamura Shiori, Matsubara Kazuki, Sakai Sotaro, Sasaki Kazuhisa, Saito Masataro, Saito Kenji, Yagi Masayuki, Norimatsu Wataru, Sasai Ryo, Kusunoki Michiko, Eguchi Miharu, Yin Shu, Asakura Yusuke, Yui Tatsuto

GLOBAL CHALLENGES   2 ( 3 )   2018.3

Tunable Mesoporous Structure of Crystalline WO₃ Photoanode toward Efficient Visible-Light-Driven Water Oxidation Reviewed

Debraj Chandra, Kenji Saito, Tatsuto Yui, Masayuki Yagi

ACS Sustainable Chemistry &amp; Engineering   6 ( 12 )   16838 - 16846   2018

Superior Inorganic Ion Cofactors of Tetraborate Species Attaining Highly Efficient Heterogeneous Electrocatalysis for Water Oxidation on Cobalt Oxyhydroxide Nanoparticles Reviewed

Ryouchi Takeuchi, Tetsuya Sato, Kou Tanaka, Kaoru Aiso, Debraj Chandra, Kenji Saito, Tatsuto Yui, Masayuki Yagi

ACS APPLIED MATERIALS & INTERFACES   9 ( 42 )   36955 - 36961   2017.10

Mechanistic Insight into Reversible Core Structural Changes of Dinuclear mu-Hydroxoruthenium(II) Complexes with a 2,8-Di-2-pyridyl-1,9,10-anthyridine Backbone Prior to Water Oxidation Catalysis Reviewed

Masanari Hirahara, Sho Nagai, Kosuke Takahashi, Shunsuke Watabe, Taisei Sato, Kenji Saito, Tatsuto Yui, Yasushi Umemura, Masayuki Yagi

INORGANIC CHEMISTRY   56 ( 17 )   10235 - 10246   2017.9

Morphology Control of Energy-Gap-Engineered Nb2O5 Nanowires and the Regioselective Growth of CdS for Efficient Carrier Transfer Across an Oxide-Sulphide Nanointerface Reviewed

Tomoki Shinohara, Miyu Yamada, Yuki Sato, Shohei Okuyama, Tatsuto Yui, Masayuki Yagi, Kenji Saito

SCIENTIFIC REPORTS   7   4913   2017.7

Polymer surfactant-assisted tunable nanostructures of amorphous IrOx thin films for efficient electrocatalytic water oxidation Reviewed

Debraj Chandra, Tsubasa Sato, Ryouchi Takeuchi, Dong Li, Takanari Togashi, Masato Kurihara, Kenji Saito, Tatsuto Yui, Masayuki Yagi

CATALYSIS TODAY   290   51 - 58   2017.7

Molecular catalysts for artificial photosynthesis: general discussion Reviewed

Mei Wang, Vincent Artero, Leif Hammarstrom, Jose Martinez, Joshua Karlsson, Devens Gust, Peter Summers, Charles Machan, Peter Brueggeller, Christopher D. Windle, Yosuke Kageshima, Richard Cogdell, Kristine Rodulfo Tolod, Alexander Kibler, Dogukan Hazar Apaydin, Etsuko Fujita, Johannes Ehrmaier, Seigo Shima, Elizabeth Gibson, Ferdi Karadas, Anthony Harriman, Haruo Inoue, Akihiko Kudo, Tomoaki Takayama, Michael Wasielewski, Flavia Cassiola, Masayuki Yagi, Hitoshi Ishida, Federico Franco, Sang Ook Kang, Daniel Nocera, Can Li, Fabio Di Fonzo, Hyunwoong Park, Licheng Sun, Tohru Setoyama, Young Soo Kang, Osamu Ishitani, Jian-Ren Shen, Ho-Jin Son, Shigeyuki Masaoka

FARADAY DISCUSSIONS   198   353 - 395   2017.6

Dual-Functional Surfactant-Templated Strategy for Synthesis of an In Situ N-2-Intercalated Mesoporous WO3 Photoanode for Efficient Visible-Light-Driven Water Oxidation Reviewed

Dong Li, Debraj Chandra, Ryouchi Takeuchi, Takanari Togashi, Masato Kurihara, Kenji Saito, Tatsuto Yui, Masayuki Yagi

CHEMISTRY-A EUROPEAN JOURNAL   23 ( 27 )   6596 - 6604   2017.5

Light Energy Accumulation from Pyrene Derivative to Tris(bipyridine)ruthenium on Clay Surface Reviewed

Daiki Morimoto, Haruya Yoshida, Keita Sato, Kenji Saito, Masayuki Yagi, Shinsuke Takagi, Tatsuto Yui

LANGMUIR   33 ( 15 )   3680 - 3684   2017.4

Color tuning of cationic pyrene derivatives on a clay nanosheet: Retardation of gradual redshift on clay Reviewed

Daiki Morimoto, Keita Sato, Kenji Saito, Masayuki Yagi, Shinsuke Takagi, Tatsuto Yui

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY   337   112 - 117   2017.3

Photoisomerization of ruthenium(II) aquo complexes: mechanistic insights and application development Reviewed

Masanari Hirahara, Masayuki Yagi

DALTON TRANSACTIONS   46 ( 12 )   3787 - 3799   2017.3

Carbonate Ions Induce Highly Efficient Electrocatalytic Water Oxidation by Cobalt Oxyhydroxide Nanoparticles Reviewed

Kaoru Aiso, Ryouchi Takeuchi, Takeshi Masaki, Debraj Chandra, Kenji Saito, Tatsuto Yui, Masayuki Yagi

CHEMSUSCHEM   10 ( 4 )   687 - 692   2017.2

In Situ Synthesis of Gold Nanoparticles without Aggregation in the Interlayer Space of Layered Titanate Transparent Films Reviewed

Kazuhisa Sasaki, Kazuki Matsubara, Shiori Kawamura, Kenji Saito, Masayuki Yagi, Tatsuto Yui

JOVE-JOURNAL OF VISUALIZED EXPERIMENTS   ( 119 )   2017.1

Characterization of Interfacial Charge-Transfer Photoexcitation of Polychromium-Oxo-Electrodeposited TiO2 as an Earth-Abundant Photoanode for Water Oxidation Driven by Visible Light Reviewed

Debraj Chandra, Ryougen Tsuriya, Tsubasa Sato, Daisuke Takama, Naoto Abe, Masashi Kajita, Dong Li, Takanari Togashi, Masato Kurihara, Kenji Saito, Tatsuto Yui, Masayuki Yagi

CHEMPLUSCHEM   81 ( 10 )   1116 - 1122   2016.10

Highly Efficient Electrocatalysis and Mechanistic Investigation of Intermediate IrOx(OH)(y) Nanoparticle Films for Water Oxidation Reviewed

Debraj Chandra, Daisuke Takama, Takeshi Masaki, Tsubasa Sato, Naoto Abe, Takanari Togashi, Masato Kurihara, Kenji Saito, Tatsuto Yui, Masayuki Yagi

ACS CATALYSIS   6 ( 6 )   3946 - 3954   2016.6

Visible-Light-Induced Morphological Changes of Giant Vesicles by Photoisomerization of a Ruthenium Aqua Complex Reviewed

Masanari Hirahara, Akira Tsukamoto, Hiroki Goto, Shigeru Tada, Masayuki Yagi, Yasushi Umemura

CHEMISTRY-A EUROPEAN JOURNAL   22 ( 8 )   2590 - 2594   2016.2

Photoelectric properties of C-60-poly(ethylene glycol) and poly(3,4-ethylenedioxythiophene) composite gel prepared via a low-temperature organic-solvent process Reviewed

Zhang Huiqiu, Masaru Ichinose, Hideaki Takahashi, Shingo Tamesue, Tetsu Mitsumata, Masayuki Yagi, Norio Tsubokawa, Takeshi Yamauchi

POLYMER JOURNAL   48 ( 2 )   163 - 168   2016.2

Synthesis of copper nanoparticles within the interlayer space of titania nanosheet transparent films Reviewed

Kazuhisa Sasaki, Kazuki Matsubara, Shiori Kawamura, Kenji Saito, Masayuki Yagi, Wataru Norimatsu, Ryo Sasai, Tatsuto Yui

JOURNAL OF MATERIALS CHEMISTRY C   4 ( 7 )   1476 - 1481   2016

In-situ synthesis of gold nanoparticles without cohesion in the interlayer space of layered titanate transparent films Reviewed

K. Sasaki, K. Matsubara, S. Kawamura, K. Saito, M. Yagi, T. Yui

J. Vis. Exp.   e55169   1 - 10   2016

Spectroelectrochemical investigation of electrocatalytic water oxidation by a mononuclear ruthenium complex in a homogeneous solution Reviewed

Junichiro Honta, Syouhei Tajima, Taisei Sato, Kenji Saito, Tatsuto Yui, Masayuki Yagi

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY   313   126 - 130   2015.12

Influence of chloro substituent on photoisomerization, redox reactions and water oxidation catalysis of mononuclear ruthenium complexes Reviewed

Kosuke Takahashi, Xiaohong Zhang, Masanari Hirahara, Taisei Sato, Kenji Saito, Tatsuto Yui, Masayuki Yagi

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY   313   117 - 125   2015.12

Emission amplification of Ru(bpy)(3)(2+) via energy transfer from pyrene derivatives on synthesized clay Reviewed

Keita Sato, Satomi Hagiwara, Daiki Morimoto, Kenji Saito, Masayuki Yagi, Shinsuke Takagi, Tatsuto Yui

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY   313   9 - 14   2015.12

Characterization of the excited states of distal- and proximal-[Ru(tpy)(pynp)OH2](2+) in aqueous solution using time-resolved infrared spectroscopy Reviewed

Sei'ichi Tanaka, Kosuke Takahashi, Masanari Hirahara, Masayuki Yagi, Ken Onda

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY   313   87 - 98   2015.12

Distribution of manganese species in an oxidative dimerization reaction of a bis-terpyridine mononuclear manganese (II) complex and their heterogeneous water oxidation activities Reviewed

Kosuke Takahashi, Taisei Sato, Hirosato Yamazaki, Masayuki Yagi

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY   152   119 - 126   2015.11

Intercrystal Self-Assembly for the Design of High-Quality Nickel Molybdate Nanocrystals Reviewed

Kenji Saito, Shotaro Kazama, Yuki Sato, Tatsuto Yui, Masayuki Yagi

INORGANIC CHEMISTRY   54 ( 18 )   8869 - 8871   2015.9

Mechanisms and Factors Controlling Photoisomerization Equilibria, Ligand Exchange, and Water Oxidation Catalysis Capabilities of Mononuclear Ruthenium(II) Complexes Reviewed

Masanari Hirahara, Tomoya Hakamata, Aaron B. League, Mehmed Z. Ertem, Kosuke Takahashi, Sho Nagai, Keisuke Inaba, Hirosato Yamazaki, Kenji Saito, Tatsuto Yui, Christopher J. Cramer, Masayuki Yagi

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY   2015 ( 23 )   3892 - 3903   2015.8

New Series of Dinuclear Ruthenium(II) Complexes Synthesized Using Photoisomerization for Efficient Water Oxidation Catalysis Reviewed

Masanari Hirahara, Sho Nagai, Kosuke Takahashi, Kenji Saito, Tatsuto Yui, Masayuki Yagi

INORGANIC CHEMISTRY   54 ( 15 )   7627 - 7635   2015.8

Sustainable Synthesis of Niobia Thin Films with Open Mesopore Channels Reviewed

Kenji Saito, Yuki Sato, Shohei Okuyama, Kazuki Matsubara, Tatsuto Yui, Masayuki Yagi

INORGANIC CHEMISTRY   54 ( 5 )   2171 - 2175   2015.3

Open Pore Architecture of an Ordered Mesoporous IrO2 Thin Film for Highly Efficient Electrocatalytic Water Oxidation Reviewed

Debraj Chandra, Naoto Abe, Daisuke Takama, Kenji Saito, Tatsuto Yui, Masayuki Yagi

CHEMSUSCHEM   8 ( 5 )   795 - 799   2015.3

Remarkable Stimulation of Emission Quenching on a Clay Surface Reviewed

Keita Sato, Kazuki Matsubara, Satomi Hagiwara, Kenji Saito, Masayuki Yagi, Shinsuke Takagi, Tatsuto Yui

LANGMUIR   31 ( 1 )   27 - 31   2015.1

Facile and simple fabrication of an efficient nanoporous WO3 photoanode for visible-light-driven water splitting Reviewed

Xiaohong Zhang, Debraj Chandra, Masashi Kajita, Hidehito Takahashi, Li Dong, Akinori Shoji, Kenji Saito, Tatsuto Yui, Masayuki Yagi

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY   39 ( 35 )   20736 - 20743   2014.12

Influencing factors on heterogeneous water oxidation catalysis by di-mu-oxo dimanganese complex on mica as a synthetic model of photosystem II Reviewed

Akinori Shoji, Masanari Hirahara, Hirosato Yamazaki, Masayuki Yagi

RESEARCH ON CHEMICAL INTERMEDIATES   40 ( 9 )   3199 - 3208   2014.11

Unique and facile solvothermal synthesis of mesoporous WO3 using a solid precursor and a surfactant template as a photoanode for visible-light-driven water oxidation Reviewed

Dong Li, Debraj Chandra, Kenji Saito, Tatsuto Yui, Masayuki Yagi

NANOSCALE RESEARCH LETTERS   9 ( 542 )   1 - 8   2014.10

Radiation therapy for carcinoma of the uterine cervix: comparison of two brachytherapy schedules Reviewed

Masashi Chatani, Kazuki Tsuboi, Masayuki Yagi, Kanta Fujiwara, Rika Tachimoto

JOURNAL OF RADIATION RESEARCH   55 ( 4 )   748 - 753   2014.7

Artificial Manganese Center Models for Photosynthetic Oxygen Evolution in Photosystem II Reviewed

Masanari Hirahara, Akinori Shoji, Masayuki Yagi

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY   ( 4 )   595 - 606   2014.2

Visible-light-driven water oxidation at a polychromium-oxo-electrodeposited TiO2 electrode as a new type of earth-abundant photoanode Reviewed

Masashi Kajita, Kenji Saito, Naoto Abe, Akinori Shoji, Kazuki Matsubara, Tatsuto Yui, Masayuki Yagi

CHEMICAL COMMUNICATIONS   50 ( 10 )   1241 - 1243   2014

Crystallization of Tungsten Trioxide Having Small Mesopores: Highly Efficient Photoanode for Visible-Light-Driven Water Oxidation Reviewed

Debraj Chandra, Kenji Saito, Tatsuto Yui, Masayuki Yagi

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION   52 ( 48 )   12606 - 12609   2013.11

Monoclinic Ag2Mo2O7 Nanowire: A New Ag-Mo-O Nanophotocatalyst Material Reviewed

Kenji Saito, Shotaro Kazama, Kazuki Matsubara, Tatsuto Yui, Masayuki Yagi

INORGANIC CHEMISTRY   52 ( 15 )   8297 - 8299   2013.8

Arrangement effect of the di-μ-oxo dimanganese catalyst and Ru(bpy) 32+ photoexcitation centers adsorbed on mica for visible-light-derived water oxidation Reviewed

Masanari Hirahara, Hirosato Yamazaki, Satoshi Yamada, Kazuki Matsubara, Kenji Saito, Tatsuto Yui, Masayuki Yagi

Catalysis Science and Technology   3 ( 7 )   1776 - 1781   2013.7

Mechanisms of photoisomerization and water-oxidation catalysis of mononuclear ruthenium(II) monoaquo complexes Reviewed

Masanari Hirahara, Mehmed Z. Ertem, Manabu Komi, Hirosato Yamazaki, Christopher J. Cramer, Masayuki Yagi

Inorganic Chemistry   52 ( 11 )   6354 - 6364   2013.6

Synthesis, characterization and heterogeneous catalysis for water oxidation of a di-manganese complex with 4′-(4-pyridyl)-2,2′:6′, 2″-terpyridine Reviewed

Hirosato Yamazaki, Tatsuya Ueno, Kaoru Aiso, Masanari Hirahara, Takeshi Aoki, Toshi Nagata, Satoshi Igarashi, Masayuki Yagi

Polyhedron   52   455 - 460   2013.3

1SAA-07 Development of molecular catalysts for water oxidation toward artificial photosynthesis(1SAA Molecular mechanism of light-driven water oxidation : photosystem II and artificial photosynthesis,Symposium,The 51th Annual Meeting of the Biophysical Society of Japan)

Yagi Masayuki

Seibutsu Butsuri   53 ( 1 )   S83   2013

Substituent Effects on Core Structures and Heterogeneous Catalytic Activities of Mn-III(mu-O)(2)Mn-IV Dimers with 2,2 ':6 ',2 ''-Terpyridine Derivative Ligands for Water Oxidation Reviewed

Hirosato Yamazaki, Satoshi Igarashi, Toshi Nagata, Masayuki Yagi

INORGANIC CHEMISTRY   51 ( 3 )   1530 - 1539   2012.2

High dose rate brachytherapy using molds after chemoradiotherapy for oral cavity cancer Reviewed

Masashi Chatani, Kazuki Tsuboi, Masayuki Yagi, Kanta Fujiwara, Rika Tachimoto, Hideo Yoshioka

JAPANESE JOURNAL OF RADIOLOGY   30 ( 1 )   40 - 44   2012.1

Stoichiometric Photoisomerization of Mononuclear Ruthenium(II) Monoaquo Complexes Controlling Redox Properties and Water Oxidation Catalysis Reviewed

Hirosato Yamazaki, Tomoya Hakamata, Manabu Komi, Masayuki Yagi

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY   133 ( 23 )   8846 - 8849   2011.6

Highly active and tunable catalysts for O-2 evolution from water based on mononuclear ruthenium(II) monoaquo complexes Reviewed

Masayuki Yagi, Syouhei Tajima, Manabu Komi, Hirosato Yamazaki

DALTON TRANSACTIONS   40 ( 15 )   3802 - 3804   2011

1SL-06 Catalytic activities for heterogenous water oxdiatiom and electic structures of di-μ-oxo dinuclear complexes as a synthetic OEC model(1SL The leading edge of photosynthesis research and energy creation,The 49th Annual Meeting of the Biophysical Society of Japan)

Yagi Masayuki

Seibutsu Butsuri   51   S10 - S11   2011

Element-saving preparation of an efficient electrode catalyst based on self-assembly of Pt colloid nanoparticles onto an ITO electrode Reviewed

Masashi Kajita, Takayuki Kuwabara, Daisuke Hasegawa, Masayuki Yagi

GREEN CHEMISTRY   12 ( 12 )   2150 - 2152   2010.12

Electrocatalytic and photocatalytic water oxidation to dioxygen based on metal complexes Reviewed

Hirosato Yamazaki, Akinori Shouji, Masashi Kajita, Masayuki Yagi

COORDINATION CHEMISTRY REVIEWS   254 ( 21-22 )   2483 - 2491   2010.11

An artificial model of photosynthetic photosystem II: visible-light-derived O-2 production from water by a di-mu-oxo-bridged manganese dimer as an oxygen evolving center Reviewed

Masayuki Yagi, Mayuu Toda, Satoshi Yamada, Hirosato Yamazaki

CHEMICAL COMMUNICATIONS   46 ( 45 )   8594 - 8596   2010

Investigation of a novel porous anodic alumina plate for methane steam reforming: Hydrothermal stability, electrical heating possibility and reforming reactivity Reviewed

Lu Zhou, Yu Guo, Masayuki Yagi, Makoto Sakurai, Hideo Kameyama

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY   34 ( 2 )   844 - 858   2009.1

Chemical Adsorption onto an ITO Substrate of Single-Wall Carbon Nanotube Functionalized by Carboxylic Groups as an Efficient Support for Electrocatalyst Reviewed

Koji Sone, Masayuki Yagi

ELECTROANALYSIS   21 ( 2 )   144 - 149   2009.1

Non-catalytic O-2 evolution by [(OH2)(Clterpy)Mn(mu-O)(2)Mn(Clterpy)(OH2)](3+) (Clterpy=4 &apos;-chloro-2,2 &apos;:6 &apos;,2 &apos;&apos;-terpyridine) adsorbed on mica with Ce-IV oxidant Reviewed

Hirosato Yamazaki, Toshi Nagata, Masayuki Yagi

PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES   8 ( 2 )   204 - 209   2009

Molecular catalysts for water oxidation toward artificial photosynthesis Reviewed

Masayuki Yagi, Akinori Syouji, Satoshi Yamada, Manabu Komi, Hirosato Yamazaki, Syouhei Tajima

PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES   8 ( 2 )   139 - 147   2009

Synthesis of Anodic Alumina Nickel Catalysts and Deactivation Studies over Them for Methane Steam Reforming under Accelerated Degradation Testing Reviewed

Lu Zhou, Yu Guo, Masayuki Yagi, Huabo Li, Jun Hatakeyama, Jian Chen, Yi Yao, Makoto Sakurai, Hideo Kameyama

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN   42 ( 3 )   160 - 171   2009

Self-activation and self-regenerative activity of trace Ru-doped plate-type anodic alumina supported nickel catalysts in steam reforming of methane Reviewed

Lu Zhou, Yu Guo, Qi Zhang, Masayuki Yagi, Huabo Li, Jian Chen, Makoto Sakurai, Hideo Kameyama

CATALYSIS COMMUNICATIONS   10 ( 3 )   325 - 329   2008.12

Influencing factors on electrochromic hysteresis performance of ruthenium purple produced by a WO3/Tris(2,2 '-bipyridine)ruthenium(II)/polymer hybrid film Reviewed

Koji Sone, Masayuki Yagi

ELECTROCHIMICA ACTA   53 ( 22 )   6535 - 6541   2008.9

Characterization and analysis of self-assembly of a highly active colloidal catalyst for water oxidation onto transparent conducting oxide substrates Reviewed

Takayuki Kuwabara, Emi Tomita, Sayaka Sakita, Daisuke Hasegawa, Koji Sone, Masayuki Yagi

JOURNAL OF PHYSICAL CHEMISTRY C   112 ( 10 )   3774 - 3779   2008.3

Preparation and photoelectrocatalytic activity of a nano-structured WO3 platelet film Reviewed

Masayuki Yagi, Syou Maruyama, Koji Sone, Keiji Nagai, Takayoshi Norimatsu

JOURNAL OF SOLID STATE CHEMISTRY   181 ( 1 )   175 - 182   2008.1

Efficient charge transport through a metal oxide semiconductor in the nanocomposite film with tris(2,2 '-bipyridine)ruthenium(II) Reviewed

Koji Sone, Masahiro Teraguchi, Takashi Kaneko, Toshiki Aoki, Masayuki Yagi

JOURNAL OF PHYSICAL CHEMISTRY C   111 ( 31 )   11636 - 11641   2007.8

Artificial model of photosynthetic oxygen evolving complex: Catalytic O-2 production from water by di-mu-oxo manganese dimers supported by clay compounds Reviewed

Masayuki Yagi, Komei Narita, Syou Maruyama, Koji Sone, Takayuki Kuwabara, Ken-ichi Shimizu

BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS   1767 ( 6 )   660 - 665   2007.6

Electrochemical and photosensitized redox reactions of a Prussian blue film layered on a WO3/[Ru(bpy)(3)](2+)/polymer hybrid film Reviewed

Koji Sone, Masahiro Teraguchi, Takashi Kaneko, Toshiki Aoki, Masayuki Yagi

CHEMPHYSCHEM   8 ( 9 )   1357 - 1362   2007.6

Unbelievably fast and unique charge transport through a tris(2,2 &apos;-bipyridine)ruthenium(II)-doped tungsten oxide film Reviewed

Masayuki Yagi, Koji Sone

ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY   233   147 - 147   2007.3

Water oxidation catalysis induced by hybridization of multi-nuclear metal complexes and solid materials Reviewed

Masayuki Yagi

ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY   233   146 - 146   2007.3

Electrochemical and photosensitized redox reactions of a Prussian blue film layered on a WO3 / tris(2,2'-bipyridine)ruthenium(II) / polymer hybrid film

Koji Sone, Masahiro Teraguchi, Takashi Kaneko, Toshiki Aoki, Masayuki Yagi

International Symposiumon Fusion Tech 2006-2007   38   2007

Characterization and activity analysis of catalytic water oxidation induced by hybridization of [(OH2)(terpy)Mn(mu-O)(2)Mn(terpy)(OH2)](3+) and clay compounds Reviewed

Komei Narita, Takayuki Kuwabara, Koji Sone, Ken-ichi Shimizu, Masayuki Yagi

JOURNAL OF PHYSICAL CHEMISTRY B   110 ( 46 )   23107 - 23114   2006.11

Electrochromic hysteresis performance of a Prussian blue film arising from electron-transfer control by a tris(2,2 '-bipyridine)ruthenium(II)-doped WO3 film as studied by a spectrocyclic voltammetry technique Reviewed

Koji Sone, Kanae Konishi, Masayuki Yagi

CHEMISTRY-A EUROPEAN JOURNAL   12 ( 33 )   8558 - 8565   2006.11

Electrochromic hysteresis performance of a Prussian blue film arising from electron-transfer control by a tris(2,2 '-bipyridine)ruthenium(II)-doped WO3 film as studied by a spectrocyclic voltammetry technique Reviewed

Koji Sone, Kanae Konishi, Masayuki Yagi

CHEMISTRY-A EUROPEAN JOURNAL   12 ( 33 )   8558 - 8565   2006.11

Insights into adsorption of uncharged macrocyclic complexes into a nafion film: Adsorption characteristics and analysis of tetraphenylporphyrine zinc(II) Reviewed

Takayuki Kuwabara, Masayuki Yagi

JOURNAL OF PHYSICAL CHEMISTRY B   110 ( 30 )   14673 - 14677   2006.8

Charge transport and catalysis by molecules confined in polymeric materials and application to future nanodevices for energy conversion Reviewed

Masayuki Yagi, Masao Kaneko

EMISSIVE MATERIALS: NANOMATERIALS   199   143 - 188   2006

Spectrocyclic voltammetry of ruthenium purple electrodeposited on a WO3/tris(2,2 '-bipyridine)-ruthenium(II)/polymer hybrid film Reviewed

K Sone, M Yagi

MACROMOLECULAR SYMPOSIA   235 ( 1 )   179 - 186   2006

Oxidization, electronic state and magnetic property of oligo(anthryleneethynylene)s with pendant phenol residues at 2- and 7- positions

Tsuyoshi Tanaka, Takashi Kaneko, Masayuki Yagi, Masahiro Teraguchi, Toshiki Aoki

Polymer Preprints, Japan   55 ( 1 )   1504   2006

Thermodynamic and kinetic insights into a reversible association- dissociation reaction of phthalocyanine Zinc(II) in a Nafion film

Takayuki Kuwabara, Masayuki Yagi, Masahiro Teraguchi, Takashi Kaneko, Toshiki Aoki

Polymer Preprints, Japan   55 ( 1 )   1625   2006

Analysis and regulation of unusual adsorption of phthalocyanine zinc(II) into a Nafion film as investigated by UV-vis spectroscopic techniques Reviewed

T Kuwabara, M Teraguchi, T Kaneko, T Aoki, M Yagi

JOURNAL OF PHYSICAL CHEMISTRY B   109 ( 44 )   21202 - 21208   2005.11

Self-assembly of active IrO2 colloid catalyst on an ITO electrode for efficient electrochemical water oxidation Reviewed

M Yagi, E Tomita, S Sakita, T Kuwabara, K Nagai

JOURNAL OF PHYSICAL CHEMISTRY B   109 ( 46 )   21489 - 21491   2005.11

Remarkably high activity of electrodeposited IrO2 film for electrocatalytic water oxidation Reviewed

Masayuki Yagi, Emi Tomita, Takayuki Kuwabara

Journal of Electroanalytical Chemistry   579 ( 1 )   83 - 88   2005.5

Remarkably high activity of electrodeposited IrO2 film for electrocatalytic water oxidation Reviewed

M Yagi, E Tomita, T Kuwabara

JOURNAL OF ELECTROANALYTICAL CHEMISTRY   579 ( 1 )   83 - 88   2005.5

Preparation and multicolor electrochromic performance of a WO3/tris(2,2 '-bipyridine)ruthenium(II)/polymer hybrid film Reviewed

M Yagi, K Sone, M Yamada, S Umemiya

CHEMISTRY-A EUROPEAN JOURNAL   11 ( 2 )   767 - 775   2005.1

Redox reaction of polyaniline controlled by WO3/Ru complex hybrid film

Masayuki Yagi, Syou Maruyama

Polymer Preprints, Japan   54 ( 1 )   1731   2005

Analysis and regulation of unusual adsorption of phthalocyanine Zinc (II) into a Nafion film

Takavuki Kuwabara, Masayuki Yagi, Masahiro Teraguchi, Takashi Kaneko, Toshiki Aoki

Polymer Preprints, Japan   54 ( 1 )   1870   2005

Synthesis of chiral helical poly[p-(oligopinanylsiloxanyl)phenylacetylene]s and enantioselective permeability of their membranes Reviewed

T Aoki, T Fukuda, KI Shinohara, T Kaneko, M Teraguchi, M Yagi

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY   42 ( 18 )   4502 - 4517   2004.9

Catalytic O-2 evolution from water induced by adsorption of [(OH2)(terpy)Mn(mu-O)(2)Mn(terpy)(OH2)](3+) complex onto clay compounds Reviewed

M Yagi, K Narita

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY   126 ( 26 )   8084 - 8085   2004.7

Entropy effect on physical displacement of redox molecules in a naflon film as studied by double potential-step chronoabsorptometry Reviewed

M Yagi, M Takahashi, M Teraguchi, T Kaneko, T Aoki

JOURNAL OF PHYSICAL CHEMISTRY B   107 ( 46 )   12662 - 12667   2003.11

Temperature-controlled charge transfer mechanism in a polymer film incorporating a redox molecule as studied by potential-step chronocouloabsorptometry Reviewed

M Yagi, T Sato

JOURNAL OF PHYSICAL CHEMISTRY B   107 ( 21 )   4975 - 4981   2003.5

Temperature-controlled charge transfer mechanism in a polymer film incorporating a redox molecule as studied by potential-step chronocouloabsorptometry Reviewed

YAGI M, SATO T

J. Phys. Chem. B   107 ( 21 )   4975 - 4981   2003

Novel preparation and photoelectrochemical properties of a tungsten oxide/tris(2,2 '-bipyrizine)ruthenium(II) complex composite film Reviewed

M Yagi, S Umemiya

JOURNAL OF PHYSICAL CHEMISTRY B   106 ( 25 )   6355 - 6357   2002.6

Mechanistic comparison between oxidative and reductive charge transport by [(bpy)(2)(H2O)Ru-O-Ru(H2O)(bpy)(2)](4+) confined in a Nafion membrane as studied by potential-step chronocoulospectrometry Reviewed

M Yagi, K Yamase, M Kaneko

ELECTROCHIMICA ACTA   47 ( 12 )   2019 - 2024   2002.5

Molecular catalysts for water oxidation Reviewed

M Yagi, M Kaneko

CHEMICAL REVIEWS   101 ( 1 )   21 - 35   2001.1

Selective photoproduction of O-2 from the Mn4O4 cubane core: A structural and functional model for the photosynthetic water-oxidizing complex Reviewed

M Yagi, KV Wolf, PJ Baesjou, SL Bernasek, GC Dismukes

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION   40 ( 15 )   2925 - 2928   2001

Analysis of water oxidation catalysis by dinuclear ruthenium complex [(NH3)(5)Ru-O-Ru(NH3)(5)](4+) incorporated in a Nafion((R)) membrane Reviewed

K Nagoshi, M Yagi, M Kaneko

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN   73 ( 10 )   2193 - 2197   2000.10

O-2 evolution from the manganese-oxo cubane core Mn4O46+: A molecular mimic of the photosynthetic water oxidation enzyme? Reviewed

W Ruettinger, M Yagi, K Wolf, S Bernasek, GC Dismukes

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY   122 ( 42 )   10353 - 10357   2000.10

Analysis of catalytic water oxidation by cis-tetraamminedichlororuthenium(III) complex incorporated in a polymer membrane Reviewed

M Yagi, N Sukegawa, M Kaneko

JOURNAL OF PHYSICAL CHEMISTRY B   104 ( 17 )   4111 - 4114   2000.5

Effect of immobilization and activity analysis of water oxidation catalysts adsorbed into clay Reviewed

S Yamashita, K Nagoshi, M Yagi, M Kaneko

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL   153 ( 1-2 )   209 - 214   2000.3

Cooperative catalysis and critical decomposition distances in water oxidation by tris(ethylenediamine)ruthenium (III) complex confined in a Nafion membrane Reviewed

M Yagi, M Kasamastu, M Kaneko

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL   151 ( 1-2 )   29 - 35   2000.2

Charge propagation in a polymer membrane incorporating zinc(II) phthalocyanine as studied by spectroelectrochemical techniques Reviewed

M Yagi, H Fukiya, T Kaneko, T Aoki, E Oikawa, M Kaneko

JOURNAL OF ELECTROANALYTICAL CHEMISTRY   481 ( 1 )   69 - 75   2000.1

Physical displacement and charge hopping of functional molecules in polymer films Reviewed

49 ( 3 )   123 - 129   2000

Analysis of cooperative catalysis by a molecular water oxidation catalyst adsorbed onto an inorganic particle matrix Reviewed

M Yagi, T Yamaguchi, M Kaneko

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL   149 ( 1-2 )   289 - 295   1999.12

Temperature dependence of physical displacement and charge hopping in a polymer membrane incorporating a trinuclear ruthenium complex Reviewed

M Yagi, K Yamase, M Kaneko

JOURNAL OF ELECTROANALYTICAL CHEMISTRY   476 ( 2 )   159 - 164   1999.11

Catalytic activity of tri(mu-chloro)-bridged dinuclear ruthenium complex confined in a polymer membrane as an artificial model of photosynthetic oxygen evolving center Reviewed

M Yagi, Y Osawa, N Sukegawa, M Kaneko

LANGMUIR   15 ( 21 )   7406 - 7408   1999.10

Challenge to Water Oxidation

YAGI Masayuki

Kobunshi   48 ( 7 )   525 - 525   1999.7

Catalytic activity of [(bpy)(2)(H2O)Ru-O-Ru(H2O)(bpy)(2)](4+) for four-electron water oxidation Reviewed

K Nagoshi, S Yamashita, M Yagi, M Kaneko

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL   144 ( 1 )   71 - 76   1999.7

Activity analysis of mononuclear ruthenium ammine complex dispersed in a polymer membrane as an electrochemical water oxidation catalyst

K Kinoshita, M Yagi, M Kaneko

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL   142 ( 1 )   1 - 5   1999.5

Cooperative catalysis and critical decomposition distances in water oxidation by the mononuclear ammineruthenium(III) complex in a nafion membrane Reviewed

M Yagi, N Sukegawa, M Kasamastu, M Kaneko

JOURNAL OF PHYSICAL CHEMISTRY B   103 ( 12 )   2151 - 2154   1999.3

Charge transport analysis of [(bpy)(2)(H2O)Ru-O-Ru(H2O)(bpy)(2)](4+) incorporated in a Nafion membrane as studied by potential-step chronocoulospectrometry Reviewed

K Kinoshita, M Yagi, M Kaneko

ELECTROCHIMICA ACTA   44 ( 11 )   1771 - 1777   1999

Activity analysis of electrocatalytic water oxidation by trinuclear ruthenium complex on an Au particle matrix Reviewed

M Yagi, E Takano, M Kaneko

ELECTROCHIMICA ACTA   44 ( 14 )   2493 - 2497   1999

Charge transport analysis of [(bpy)(2)(H2O)Ru-O-Ru(H2O)(bpy)(2)](4+) incorporated in a Nafion membrane as studied by potential-step chronocoulospectrometry

K Kinoshita, M Yagi, M Kaneko

ELECTROCHIMICA ACTA   44 ( 11 )   1771 - 1777   1999

Charge transfer distance between trinuclear ruthenium complexes incorporated in a polymer membrane studied by potential-step chronoamperospectrometry

M Yagi, K Kinoshita, M Kaneko

ELECTROCHIMICA ACTA   44 ( 13 )   2245 - 2250   1999

Enhancing effects of amino acid residue model compounds on catalytic activity of an artificial oxygen evolving center

K Kinoshita, M Yagi, M Kaneko

MACROMOLECULES   31 ( 18 )   6042 - 6045   1998.9

Temperature dependence in charge hopping between redox centers in a polymer membrane as studied by potential-step chronocoulospectrometry Reviewed

Masayuki Yagi, Takanori Mitsumoto, Masao Kaneko

Journal of Electroanalytical Chemistry   448 ( 1 )   131 - 137   1998.5

Temperature dependence in charge hopping between redox centers in a polymer membrane as studied by potential-step chronocoulospectrometry

M Yagi, T Mitsumoto, M Kaneko

JOURNAL OF ELECTROANALYTICAL CHEMISTRY   448 ( 1 )   131 - 137   1998.5

Enhancing effect of amino acid residue models on the charge transfer in a Nafion® film incorporating Ru(bpy)2+ 3 complex Reviewed

Jian Zhang, Masayuki Yagi, Masao Kaneko

Journal of Electroanalytical Chemistry   445 ( 1-2 )   109 - 116   1998.3

Enhancing effect of amino acid residue models on the charge transfer in a Nafion (R) film incorporating Ru(bpy)(3)(2+) complex

J Zhang, M Yagi, M Kaneko

JOURNAL OF ELECTROANALYTICAL CHEMISTRY   445 ( 1-2 )   109 - 116   1998.3

Redox reaction and charge transport of trinuclear ruthenium complex, Ru-red as studied by potential-step chronoamperospectrometry

M Yagi, K Kinoshita, K Nagoshi, M Kaneko

ELECTROCHIMICA ACTA   43 ( 21-22 )   3277 - 3284   1998

Potential-step chronocoulospectrometry of a polymer membrane incorporating tris(2,2′-bipyridine) ruthenium (II) complex Reviewed

Masayuki Yagi, Takanori Mitsumoto, Masao Kaneko

Journal of Electroanalytical Chemistry   437 ( 1-2 )   219 - 223   1997.11

Potential-step chronocoulospectrometry of a polymer membrane incorporating tris(2,2 '-bipyridine)ruthenium (II) complex

M Yagi, T Mitsumoto, M Kaneko

JOURNAL OF ELECTROANALYTICAL CHEMISTRY   437 ( 1-2 )   219 - 223   1997.11

Dioxygen evolution induced by visible light at layered sensitizer water oxidation catalyst

M Yagi, Y Takahashi, Ogino, I, M Kaneko

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS   93 ( 17 )   3125 - 3127   1997.9

Cooperative catalysis and critical decomposition distances between molecular water oxidation catalysts incorporated in a polymer membrane

M Yagi, K Nagoshi, M Kaneko

JOURNAL OF PHYSICAL CHEMISTRY B   101 ( 26 )   5143 - 5146   1997.6

Enhancing effect of an amino acid residue model for the electrochemical water oxidation catalyst confined in a polymer membrane

M Yagi, K Kinoshita, M Kaneko

JOURNAL OF PHYSICAL CHEMISTRY B   101 ( 20 )   3957 - 3960   1997.5

Activity analysis of a water oxidation catalyst adsorbed on an inorganic particle matrix

O Ogino, K Nagoshi, M Yagi, M Kaneko

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS   92 ( 18 )   3431 - 3434   1996.9

Activity analysis of a water oxidation catalyst adsorbed on an inorganic particle matrix Reviewed

O Ogino, K Nagoshi, M Yagi, M Kaneko

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS   92 ( 18 )   3431 - 3434   1996.9

Determination of charge transfer distance by potential-step chronoamperospectrometry in a Nafion(R) film containing Ru(bpy)(3)(2+) complex

J Zhang, M Yagi, XH Hou, M Kaneko

JOURNAL OF ELECTROANALYTICAL CHEMISTRY   412 ( 1-2 )   159 - 164   1996.8

Determination of charge transfer distance by potential-step chronoamperospectrometry in a Nafion(R) film containing Ru(bpy)(3)(2+) complex Reviewed

J Zhang, M Yagi, XH Hou, M Kaneko

JOURNAL OF ELECTROANALYTICAL CHEMISTRY   412 ( 1-2 )   159 - 164   1996.8

Activity analysis of a water oxidation catalyst immobilized in a polymer membrane

M Yagi, S Tokita, K Nagoshi, Ogino, I, M Kaneko

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS   92 ( 13 )   2457 - 2461   1996.7

Activity analysis of electrochemical water oxidation catalyst confined in a coated-polymer membrane

M Yagi, K Kinoshita, M Kaneko

JOURNAL OF PHYSICAL CHEMISTRY   100 ( 26 )   11098 - 11100   1996.6

Analysis of charge transfer distance between Ru(bpy)3(2+) complexes incorporated into a Nafion film as studied by spectrocyclic voltammogram Reviewed

J Zhang, M Yagi, M Kaneko

MACROMOLECULAR SYMPOSIA   105   59 - 66   1996.3

Tris(bipyridine)ruthenium(II) photosensitized reduction of a macrocyclic cobalt(III) complex using phenol as a donor in aqueous acidic solutions

J Hirata, M Yagi, T Oriyama, M Kaneko, Y Kurimura

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS   92 ( 6 )   969 - 972   1996.3

Analysis of charge transfer distance between Ru(bpy)3(2+) complexes incorporated into a Nafion film as studied by spectrocyclic voltammogram

J Zhang, M Yagi, M Kaneko

MACROMOLECULAR SYMPOSIA   105   59 - 66   1996.3

HIGHLY-ACTIVE ELECTROCATALYTIC WATER OXIDATION SYSTEM COMPOSED OF TRINUCLEAR RUTHENIUM COMPLEX SUPPORTED ON PLATINUM BLACK

M YAGI, OGINO, I, A MIURA, Y KURIMURA, M KANEKO

CHEMISTRY LETTERS   ( 10 )   863 - 864   1995.10

CHARGE-TRANSFER DISTANCE BETWEEN TRIS(2,2'-BIPYRIDINE)RUTHENIUM(II) REDOX CENTERS INCORPORATED IN NAFION(R) MEMBRANE

M YAGI, K NAGAI, A KIRA, M KANEKO

JOURNAL OF ELECTROANALYTICAL CHEMISTRY   394 ( 1-2 )   169 - 175   1995.9

CHARGE-TRANSFER AND MOLECULAR-DISTRIBUTION OF RU(BPY)(3)(2+) COMPLEX DISPERSED IN A NAFION(R) MEMBRANE AS STUDIED BY IN-SITU SPECTROCYCLIC VOLTAMMETRY

M YAGI, K NAGAI, T ONIKUBO, M KANEKO

JOURNAL OF ELECTROANALYTICAL CHEMISTRY   383 ( 1-2 )   61 - 66   1995.2

MECHANISM OF THE TRIS(BIPYRIDINE)RUTHENIUM(II) PHOTOSENSITIZED REVERSIBLE REDOX REACTION OF A MACROCYCLIC COBALT(III) COMPLEX IN GELATIN HYDROGEL AND HYDROSOL Reviewed

M YAGI, K OKAJIMA, Y KURIMURA

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS   88 ( 10 )   1411 - 1415   1992.5

人工光合成：光エネルギーによる物質変換の化学

八木 政行（第10章「水の酸化反応を触媒する金属錯体」複合系の光機能研究会選書2）

三共出版  2015 

CSJカレントレビュー15巻「次世代のバイオ水素エネルギー：再生可能エネルギーの創出と変換をめざして」

齊藤 健二, 八木 政行（11章「不均一系半導体光触媒と燃料化」）

化学同人  2014 

人工光合成 －システム構築に向けての最新技術動向と展望－

平原将也, 八木政行（5章3節 「合成錯体分子による水の酸化触媒の創製」）

シーエムシー出版  2013 

Ruthenium: Properties, Production and Applications

H. Yamazaki, T. Miyagawa, A. Shouji, M. Kajita, M. Yagi（Catalytic water oxidation to produce molecular oxygen by ruthenium complexes (Chapter 15)）

Nova Science Publishers, Inc.  2011 

in Photosynthesis: Theory and Applications in Energy, Biotechnology and Nanotechnology

M. Yagi, H. Yamazaki, T. Aoki, K. Narita（Synthetic models of photosynthetic water oxidizing complex (OEC): O2 evolution from water by heterogeneous manganese-oxo complexes (Chapter 7)）

Nova Science Publishers, Inc.  2009 

in Electroanalytical Chemistry Research Trends

K. Sone, M. Yagi（Electrochemical synthesis, charge transport and multi-electron transfer control for a new semiconductor nanocomposite film with a functional molecule (Chapter 3)）

Nova Science Publishers, Inc.  2009 

光化学エネルギー変換 —基礎と応用—

金子正夫, 八木政行（8章「水の酸化触媒モデル」,10章3節「高分子膜中の電荷伝達」）

アイピーシー  1997 

人工光合成のための水の酸化アノードの開発

佐藤太哉, 田中 滉, 棚橋祐樹, 八木政行

月刊「ケミカルエンジニヤリング」, 化学工業社   63 ( 9 )   19 - 30   2018

人工光合成のための水の酸化アノード

竹内良知, 佐藤 翼, 八木政行

月刊誌「機能材料」2017年4月号, シーエムシー出版   37 ( 4 )   40 - 50   2017

Unique synthesis, properties and functions of mono- and di-nuclear ruthenium(II) aquo complexes

K. Takahashi, M. Hirahara, T. Sato, M. Yagi

Advances in Chemistry Research. Volume 30. (Edited by James C. Taylor), Nova Science Publishers, Inc.   35 - 50   2016

第10章「水の酸化反応を触媒する金属錯体」複合系の光機能研究会選書2

八木政行

人工光合成：光エネルギーによる物質変換の化学,三共出版   194 - 215   2015

層状半導体層間での銀ナノ粒子の合成と近赤外吸収特性

河村栞里, 佐々木和久, 高木文彰, 笹井亮, 乗松航, 齊藤健二, 八木政行, 由井樹人

光化学討論会要旨集(CD-ROM)   2015   2015

層状半導体と金属ナノ粒子複合体の合成と光化学特性

由井樹人, 河村栞里, 佐々木和久, 高木文彰, 齊藤健二, 八木政行, 乗松航, 笹井亮

光化学討論会要旨集(CD-ROM)   2015   2015

Development of Visible-light-driven Photoanodes for Water Oxidation toward Artificial Photosynthesis

65 ( 3 )   200 - 205   2014.3

Artificial Manganese Center Models for Photosynthetic Oxygen Evolution in Photosystem II

Masanari Hirahara, Akinori Shoji, Masayuki Yagi

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY   2014 ( 4 )   595 - 606   2014.2

人工光合成のための可視光駆動型水の光酸化アノード

Debraj Chandra, 八木政行

月刊「化学工業」2014年3月号, 化学工業社   65 ( 3 )   32 - 37   2014

11章「不均一系半導体光触媒と燃料化」

齊藤 健二, 八木 政行

CSJカレントレビュー15巻「次世代のバイオ水素エネルギー：再生可能エネルギーの創出と変換をめざして」化学同人   116 - 121   2014

5章3節 「合成錯体分子による水の酸化触媒の創製」

平原将也, 八木政行

人工光合成 －システム構築に向けての最新技術動向と展望－, 監修 福住俊一, シーエムシー出版   98 - 109   2013

水分解のための高性能電極触媒の開発

相蘇薫, 阿部尚人, 八木政行

月刊「ケミカルエンジニヤリング」, 化学工業社   58 ( 10 )   19 - 25   2013

Development of Efficient Water Oxidation Catalysts Based on Coordination Complexes

63 ( 9 )   664 - 667   2012.9

金属錯体による水の酸化触媒系の構築

平原将也, 八木政行

月刊「化学工業」2012年9月号,化学工業社   63 ( 9 )   8 - 11   2012

25pGP-6 An artificial model of a photosynthetic oxygen evolving center using dinuclear manganese di-μ-oxo-complexes

Yagi Masayuki

Meeting abstracts of the Physical Society of Japan   66 ( 1 )   378 - 378   2011.3

水素生成型太陽電池を目指した水の光酸化ナノ複合触媒の開発

八木 政行

化学経済9月号   ( 9/1 )   66   2011

Catalytic water oxidation to produce molecular oxygen by ruthenium complexes (Chapter 15)

H. Yamazaki, T. Miyagawa, A. Shouji, M. Kajita, M. Yagi

Ruthenium: Properties, Production and Applications (Edited by David B. Watson), Nova Science Publishers, Inc.   399 - 411   2011

New Development of molecular catalysts for water oxidation

YAGI Masayuki

Bull. Jpn. Soc. Coord. Chem.   57   67 - 74   2011

人工光合成！太陽光と水から燃料をつくる

八木 政行

コメッセニュース 9月号, NPO新潟の科学・自然探偵団   ( 10/7 )   6 - 7   2011

Electrochemical synthesis, charge transport and multi-electron transfer control for a new semiconductor nanocomposite film with a functional molecule (Chapter 3)

K. Sone, M. Yagi

Electroanalytical Chemistry Research Trends (Edited by K. Hayashi),Nova Science Publishers, Inc., New York   83 - 105   2009

Synthetic models of photosynthetic water oxidizing complex (OEC): O2 evolution from water by heterogeneous manganese-oxo complexes (Chapter 7)

M. Yagi, H. Yamazaki, T. Aoki, K. Narita

Photosynthesis: Theory and Applications in Energy, Biotechnology and Nanotechnology (Edited by T. B. Buchner and N. H. Ewingen), Nova Science Publishers, Inc., New York   179 - 192   2009

電気化学的手法を用いた新機能分子複合膜の合成と電子移動解析

曽根浩司, 八木政行

Electrochemistry, 電気化学会   75 ( 11 )   890 - 895   2007

エネルギー変換デバイスのための高活性電極触媒

八木 政行

OHM, オーム社   93 ( 6 )   2 - 3   2006

光合成酸素発生錯体モデル

八木 政行

不均一系マンガン錯体による水からの酸素発生，光合成研究   16 ( 47 )   2 - 6   2006

O2 evolution from water induced by adsorption of metal complexes onto heterogeneous matrixes

46   15 - 21   2005

Generation of High-Purity Hydrogen by Water Electrolysis Using Polymer Electrolyte Membranes

YAGI Masayuki

Kobunshi   52 ( 5 )   333 - 333   2003

水の燃料化のための高活性高分子触媒膜の創製

八木政行

未来材料、NST Inc.   2 ( 9 )   12 - 19   2002

高分子膜中における機能性分子の物理的移動と電荷ホッピング(共著)

八木政行, 青木俊樹

高分子加工   49 ( 3 )   123 - 129   2000

Catalytic Water Oxidation by a Tetrakis(bipyridine)ruthenium Dinuclear Complex Incorporated into a Nafion Membrane.

名越健太郎, 山下覚嗣, 城石英伸, 木下小聖, 八木政行, 金子正夫

電気化学会大会講演要旨集   64th   127   1997.3

8章「水の酸化触媒モデル」 10章3節「高分子膜中の電荷伝達」

光化学エネルギー変換-基礎と応用-,アイピーシー   213-223,282-288   1997

高分子等体内の電子移動反応

八木政行, 栗村芳實

高分子錯体アニュアルレビュー   13 - 14   1993

「分子・半導体光触媒による高効率可視光水分解系の開発」

2017.10 - 2022.3

System name：科学研究費 新学術領域研究（研究領域提案型）領域番号：4906「光合成分子機構の学理解明と時空間制御による革新的光―物質変換系の創製」

Awarding organization：文部科学省

八木 政行

「水の酸化光触媒機能を有する人工光合成システム」

2012.4 - 2017.3

System name：科学研究費 新学術領域研究（研究領域提案型）領域番号：2406「人工光合成による太陽光エネルギーの物質変換：実用化に向けての異分野融合」

Awarding organization：文部科学省

八木 政行

「光異性化反応を利用した新規二核ルテニウムアコ錯体酸素発生触媒群の革新的合成」

2012.4 - 2015.3

System name：科学研究費 基盤研究B

Awarding organization：文部科学省

八木 政行

技術英語II

論文輪講I

論文輪講II

技術英語I

材料科学実験II

大型機器分析技術

水素エネルギーシステムデザイン演習・実習Ⅲ

工学リテラシー入門(化学材料分野)

材料科学概論

技術英語入門

機能材料化学概論

機能材料科学文献詳読Ⅰ

機能材料科学セミナーⅡ

材料生産システム特定研究Ⅱ

研究発表演習・発表

材料生産システム特定研究Ⅰ

機能材料科学セミナーⅠ

機能材料科学文献詳読Ⅱ

材料生産システム博士セミナーⅡ

材料生産システム博士特定研究Ⅲ

外国語論文解説・討論Ⅲ

外国語論文解説・討論Ⅱ

材料生産システム博士特定研究Ⅱ

材料生産システム博士セミナーⅢ

最先端技術を支える化学 II

インターンシップ

機能材料科学演習

中間発表

材料生産システム博士特定研究Ⅰ

エネルギー概論 II

材料生産システム博士セミナーⅠ

エネルギー概論 I

外国語論文解説・討論Ⅰ

博士特定研究Ⅲ

機能材料科学コース演習

技術者倫理

工学リテラシー入門(機能材料工学科)

電気化学

卒業研修

技術英語

論文輪講

自然科学総論Ⅱ

化学実験

基礎無機化学

機能性無機材料特論

電子移動反応論

機能材料工学実験I

化学課題研究IV

錯体化学演習II

錯体化学演習I

化学課題研究III

卒業研究

分子触媒反応化学

無機反応化学

生活環境化学実習

化学演習AI

錯体化学特論

基礎化学実験

基礎化学IA

生活環境化学セミナーA

物理化学実験

生活環境化学セミナーB

無機化学

化学課題研究II

理科教育法(中等)IV

化学演習AII

化学課題研究I

錯体化学演習