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2016
1 Citations

Adsorption behavior of low concentration carbon monoxide on polymer electrolyte fuel cell anodes for automotive applications

Matsuda, Y., Shimizu, T. & Mitsushima, S. 2016 Jun 30 In : Journal of Power Sources. 318, p. 1-8 8 p.

Research output: Contribution to journalArticle

Anodes
Fuel cells
Oxygen
Electrolytes
Adsorption

Electrocatalytic hydrogenation of o-xylene in a PEM reactor as a study of a model reaction for hydrogen storage

Takano, K., Tateno, H., Matsumura, Y., Fukazawa, A., Kashiwagi, T., Nakabayashi, K., Nagasawa, K., Mitsushima, S. & Atobe, M. 2016 In : Chemistry Letters. 45, 12, p. 1437-1439 3 p.

Research output: Contribution to journalArticle

Xylene
Hydrogenation
Ion exchange
Protons
Membranes

Electrocatalytic hydrogenation of toluene using a proton exchange membrane reactor

Takano, K., Tateno, H., Matsumura, Y., Fukazawa, A., Kashiwagi, T., Nakabayashi, K., Nagasawa, K., Mitsushima, S. & Atobe, M. 2016 In : Bulletin of the Chemical Society of Japan. 89, 10, p. 1178-1183 6 p.

Research output: Contribution to journalArticle

Hydrogenation
Toluene
Protons
Membranes
Ion exchange

OER Activity of Ir-Ta-Zr Composite Anode as a Counter Electrode for Electrohydrogenation of Toluene

Nagai, K., Nagasawa, K. & Mitsushima, S. 2016 Nov 1 In : Electrocatalysis. 7, 6, p. 441-444 4 p.

Research output: Contribution to journalArticle

Toluene
Anodes
Oxygen
Contamination
Electrodes
1 Citations

Temperature dependence of oxygen reduction mechanism on a titanium oxide-based catalyst made from oxy-titanium tetra-pyrazino-porphyrazine using carbon nano-tubes as support in acidic solution

Hayashi, T., Ishihara, A., Nagai, T., Arao, M., Imai, H., Kohno, Y., Matsuzawa, K., Mitsushima, S. & Ota, K. I. 2016 Aug 10 In : Electrochimica Acta. 209, p. 1-6 6 p.

Research output: Contribution to journalArticle

Oxygen
Titanium oxides
Electrons
Cathodes
Titanium
4 Citations

Titanium-niobium oxides mixed with Ti4O7 as precious-metal-and carbon-free cathodes for polymer electrolyte fuel cells

Ishihara, A., Hamazaki, M., Arao, M., Matsumoto, M., Imai, H., Kohno, Y., Matsuzawa, K., Mitsushima, S. & Ota, K. 2016 In : Journal of the Electrochemical Society. 163, 7, p. F603-F609

Research output: Contribution to journalArticle

Cathodes
Oxides
Oxygen
Precious metals
Fuel cells
2015

Development of group 4 and 5 metal oxide cathode with electron conductive oxide

Ota, K. I., Hamazaki, M., Matsuzawa, K., Mitsushima, S. & Ishihara, A. 2015 ECS Transactions. 17 ed. Electrochemical Society Inc., Vol. 69, p. 13-21 9 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Oxides
Oxidation
Electrons
Metals
Metal complexes

Durability of titanium-niobium oxides mixed with ti4o7 as non-preciousand carbon-free cathodes for PEFCs in H2SO4 at 80°C

Hamazaki, M., Ishihara, A., Kohno, Y., Matsuzawa, K., Mitsushima, S. & Ota, K. I. 2015 In : Electrochemistry. 83, 10, p. 817-819 3 p.

Research output: Contribution to journalArticle

Durability
Cathodes
Niobium oxide
Titanium
Carbon
7 Citations

Effect of reheating treatment on oxygen-reduction activity and stability of zirconium oxide-based electrocatalysts prepared from oxy-zirconium phthalocyanine for polymer electrolyte fuel cells

Okada, Y., Ishihara, A., Matsumoto, M., Arao, M., Imai, H., Kohno, Y., Matsuzawa, K., Mitsushima, S. & Ota, K. 2015 Jun 11 In : Journal of the Electrochemical Society. 162, 9, p. F959-F964

Research output: Contribution to journalArticle

Oxygen
Temperature
Graphitization
Electrocatalysts
Zirconium
1 Citations

Kinetic study of oxygen reduction reaction in acid solution using titanium oxide-based catalysts prepared from oxy-titanium tetra-pyrazino-porphyrazine

Hayashi, T., Ishihara, A., Uehara, N., Kohno, Y., Matsuzawa, K., Mitsushima, S. & Ota, K. I. 2015 In : Electrochemistry. 83, 10, p. 807-809 3 p.

Research output: Contribution to journalArticle

Oxygen
Titanium oxides
Catalysts
Titanium
Electrocatalysts
3 Citations

Kinetic study of oxygen reduction reaction on tantalum oxide-based electrocatalysts produced from oxy-tantalum phthalocyanines in acidic media

Uehara, N., Ishihara, A., Nagai, T., Matsumoto, M., Imai, H., Kohno, Y., Matsuzawa, K., Mitsushima, S. & Ota, K. 2015 Nov 10 In : Electrochimica Acta. 182, p. 789-794 6 p.

Research output: Contribution to journalArticle

Electrons
Reaction rates
Tantalum oxides
Oxygen
Hydrogen peroxide
3 Citations

Membrane electrolysis of toluene hydrogenation with water decomposition for energy carrier synthesis

Mitsushima, S., Takakuwa, Y., Nagasawa, K., Sawaguchi, Y., Kohno, Y., Matsuzawa, K., Awaludin, Z., Kato, A. & Nishiki, Y. 2015 Nov 5 In : Electrocatalysis. 7, 2, p. 127-131 5 p.

Research output: Contribution to journalArticle

Toluene
Hydrogenation
Anodes
Current density
Membranes

Oxide-based electrocatalysts toward oxygen reduction reaction as non Pt cathodes for PEFC

Uehara, N., Ishihara, A., Imai, H., Matsumoto, M., Arao, M., Ohgi, Y., Kohno, Y., Matsuzawa, K., Mitsushima, S. & Ota, K. I. 2015 ECS Transactions. 36 ed. Electrochemical Society Inc., Vol. 64, p. 23-31 9 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Oxygen
Cathodes
Tantalum oxides
Oxides
Electrocatalysts

Oxygen reduction durability and activity of tantalum oxide-based electrocatalysts for cathode of polymer electrolyte fuel cells

Matsuzawa, K., Ishihara, A., Uehara, N., Fujita, Y., Kohno, Y., Matsumoto, M., Ohgi, Y., Mitsushima, S., Imai, H. & Ota, K. I. 2015 ECS Transactions. 17 ed. Electrochemical Society Inc., Vol. 69, p. 3-12 10 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Tantalum oxides
Durability
Oxygen
Fuel cells
Cathodes
12 Citations

Synthesis of nano-TaOx oxygen reduction reaction catalysts on multi-walled carbon nanotubes connected via a decomposition of oxy-tantalum phthalocyanine

Ishihara, A., Chisaka, M., Ohgi, Y., Matsuzawa, K., Mitsushima, S. & Ota, K. 2015 Mar 28 In : Physical Chemistry Chemical Physics. 17, 12, p. 7643-7647 5 p.

Research output: Contribution to journalArticle

Tantalum
Carbon nanotubes
Oxygen
Nanotubes
Pyrolysis
4 Citations

Tantalum oxide-based electrocatalysts made from oxy-tantalum phthalocyanines as non-platinum cathodes for polymer electrolyte fuel cells

Uehara, N., Ishihara, A., Matsumoto, M., Imai, H., Kohno, Y., Matsuzawa, K., Mitsushima, S. & Ota, K. 2015 Oct 10 In : Electrochimica Acta. 179, p. 146-153 8 p.

Research output: Contribution to journalArticle

Oxygen
Cathodes
Tantalum oxides
Current density
Tantalum
3 Citations

Titanium-niobium oxides as non-noble metal cathodes for polymer electrolyte fuel cells

Ishihara, A., Tamura, Y., Chisaka, M., Ohgi, Y., Kohno, Y., Matsuzawa, K., Mitsushima, S. & Ota, K. I. 2015 Jul 17 In : Catalysts. 5, 3, p. 1289-1303 15 p.

Research output: Contribution to journalArticle

Oxygen
Cathodes
Oxides
Niobium oxide
Electron energy levels
2014
1 Citations

A Simulation Study of Pt Particle Degradation During Potential Cycling Using a Dissolution/Deposition Model

Hiraoka, F., Kohno, Y., Matsuzawa, K. & Mitsushima, S. 2014 Jan 1 In : Electrocatalysis. 6, 1, p. 102-108 7 p.

Research output: Contribution to journalArticle

Degradation
Particle size
Particle size analysis
Fuel cells
Dissolution

Assessing the environmental impact of hydrogen energy production

Ota, K., Mitsushima, S., Matsuzawa, K. & Ishihara, A. 2014 Jul 3 Advances in Hydrogen Production, Storage and Distribution. Elsevier Inc., p. 31-42 12 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Hydrogen
Environmental impact
Energy utilization
Carbon
Water
1 Citations

Charge and mass transfer on a La 2O 3 added Li/Na or Li/K molten carbonate meniscus electrode of LaNiO 3 coated au ring for oxygen reduction reaction

Takeuchi, Y., Matsuzawa, K., Kohno, Y. & Mitsushima, S. 2014 ECS Transactions. 4 ed. Electrochemical Society Inc., Vol. 64, p. 635-644 10 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Carbonates
Electrodes
Molten materials
Mass transfer
Charge transfer
1 Citations

Enhancement of oxygen reduction activity of titanium nano-oxide-based electrocatalysts for PEFC cathode

Hayashi, T., Ishihara, A., Matsumoto, M., Imai, H., Kohno, Y., Matsuzawa, K., Mitsushima, S. & Ota, K. 2014 ECS Transactions. 3 ed. Electrochemical Society Inc., Vol. 64, p. 247-252 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Oxygen
Titanium oxides
Titanium
Catalysts
Electrocatalysts
1 Citations

Improvement of the electrocatalytic activity of zirconium oxide-based catalyst for ORR

Okada, Y., Ishihara, A., Arao, M., Matsumoto, M., Imai, H., Kohno, Y., Matsuzawa, K., Mitsushima, S. & Ota, K. I. 2014 ECS Transactions. 3 ed. Electrochemical Society Inc., Vol. 64, p. 231-238 8 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Oxygen
Electrocatalysts
Zirconia
Chemical stability
Zirconium

Oxide-based electrocatalysts as precious metal and carbon free cathodes for PEFC

Hamazaki, M., Ishihara, A., Arao, M., Matsumoto, M., Imai, H., Kohno, Y., Matsuzawa, K., Mitsushima, S. & Ota, K. 2014 ECS Transactions. 3 ed. Electrochemical Society Inc., Vol. 64, p. 239-246 8 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Oxides
Cathodes
Oxygen
Electrocatalysts
Oxygen vacancies
2013
1 Citations

Activity of tantalum oxide-based electrocatalysts toward oxygen reduction reaction for PEFC

Uehara, N., Ishihara, A., Kohno, Y., Matsuzawa, K., Mitsushima, S. & Ota, K. I. 2013 ECS Transactions. 1 ed. Electrochemical Society Inc., Vol. 58, p. 1217-1223 7 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Oxygen
Cathodes
Tantalum oxides
Ball milling
Catalyst supports

Advanced study of transition metal oxidebased cathode for PEFCS

Ota, K., Matsuzawa, K., Mitsushima, S. & Ishihara, A. 2013 EFC 2013 - Proceedings of the 5th European Fuel Cell Piero Lunghi Conference. ENEA, p. 71-72 2 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Cathodes
Oxides
Catalyst activity
Cost reduction
Transition metals
11 Citations

Degradation of Pt/C Under Various Potential Cycling Patterns

Hiraoka, F., Matsuzawa, K. & Mitsushima, S. 2013 Mar 7 In : Electrocatalysis. 4, 1, p. 10-16 7 p.

Research output: Contribution to journalArticle

Degradation
Platinum
Oxides

Durability and activity of modified nickel anode for alkaline water electrolysis

Ichikawa, H., Matsuzawa, K., Kohno, Y., Nagashima, I., Sunada, Y., Nishiki, Y., Manabe, A. & Mitsushima, S. 2013 ECS Transactions. 33 ed. Electrochemical Society Inc., Vol. 58, p. 9-15 7 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Nickel
Anodes
Durability
Electrolysis
Oxides

Effect of SiO 2 additive in catalyst layer and electrolyte on the performance for mesothermal fuel cell using room temperature molten salts

Uryu, H., Kohno, Y., Matsuzawa, K. & Mitsushima, S. 2013 ECS Transactions. 1 ed. Electrochemical Society Inc., Vol. 58, p. 1353-1360 8 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Catalysts
Electrolytes
Membranes
Ionic conductivity
Polyimides
28 Citations

Emergence of oxygen reduction activity in partially oxidized tantalum carbonitrides: Roles of deposited carbon for oxygen-reduction-reaction-site creation and surface electron conduction

Ishihara, A., Tamura, M., Ohgi, Y., Matsumoto, M., Matsuzawa, K., Mitsushima, S., Imai, H. & Ota, K. I. 2013 Sep 19 In : Journal of Physical Chemistry C. 117, 37, p. 18837-18844 8 p.

Research output: Contribution to journalArticle

Oxygen
Carbon nitride
Tantalum
Carbon
Tantalum oxides
4 Citations

Enhancement of oxygen reduction activity of zirconium oxide-based cathode for PEFC

Yin, S., Ishihara, A., Kohno, Y., Matsuzawa, K., Mitsushima, S., Ota, K. I., Matsumoto, M. & Imai, H. 2013 ECS Transactions. 1 ed. Electrochemical Society Inc., Vol. 58, p. 1489-1494 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Oxygen
Zirconium
Cathodes
Protective atmospheres
Voltammetry
19 Citations

Factors for improvements of catalytic activity of zirconium oxide-based oxygen-reduction electrocatalysts

Ohgi, Y., Ishihara, A., Matsuzawa, K., Mitsushima, S., Ota, K. I., Matsumoto, M. & Imai, H. 2013 Apr 2 In : Journal of the Electrochemical Society. 160, 2

Research output: Contribution to journalArticle

Zirconium
Oxygen
Carbon nitride
Oxidation
Carbon
3 Citations

Immersed effects of Ta and Zr compounds on activity of oxygen reduction reaction in sulfuric acid

Matsuzawa, K., Nozawa, K., Yamauchi, K., Ishihara, A., Mitsushima, S. & Ota, K. I. 2013 Mar 15 In : Journal of Power Sources. 226, p. 16-19 4 p.

Research output: Contribution to journalArticle

Sulfuric acid
Oxygen
Catalyst activity
1 Citations

Improving ORR activity of group 4 and 5 metal oxide-based cathodes for PEFCs

Ishihara, A., Yin, S., Suito, K., Uehara, N., Okada, Y., Kohno, Y., Matsuzawa, K., Mitsushima, S., Chisaka, M., Ohgi, Y., Matsumoto, M., Imai, H. & Ota, K. I. 2013 ECS Transactions. 1 ed. Electrochemical Society Inc., Vol. 58, p. 1495-1500 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Cathodes
Oxides
Oxygen
Metals
Nitridation

Nano-sized titanium oxides as electrocatalyst for oxygen reduction reaction toward PEFC

Suito, K., Ishihara, A., Hayashi, T., Matsumoto, M., Arao, M., Kohno, Y., Matsuzawa, K., Imai, H., Mitsushima, S. & Ota, K. 2013 ECS Transactions. 47 ed. Electrochemical Society Inc., Vol. 58, p. 1-7 7 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Titanium oxides
Oxygen
Cathodes
Carbon nitride
Electrocatalysts

Oxygen evolution reaction for Ta compound films prepared by reaction sputtering with resintering

Matsuzawa, K., Goto, K., Takahashi, K., Kohno, Y., Ota, K. & Mitsushima, S. 2013 Jan 1 ECS Transactions. 9 ed. Electrochemical Society Inc., Vol. 53, p. 3-9 7 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Tantalum compounds
Sputtering
Oxygen
Catalyst activity
Reactive sputtering

Stabilization and activation of zirconium oxide based electrocatalysts as PEFC cathode by re-heat treatment

Okada, Y., Ishihara, A., Matsumoto, M., Arao, M., Imai, H., Kohno, Y., Matsuzawa, K., Mitsushima, S. & Ota, K. 2013 ECS Transactions. 1 ed. Electrochemical Society Inc., Vol. 58, p. 1225-1231 7 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Electrocatalysts
Zirconia
Durability
Heat treatment
Stabilization
1 Citations

Zirconium oxide-based cathode prepared by partial oxidation of carbonitrides as non-precious metal cathode for polymer electrolyte fuel cells

Ota, K. I., Ohgi, Y., Matsuzawa, K., Mitsushima, S. & Ishihara, A. 2013 Jan 1 ECS Transactions. 12 ed. Electrochemical Society Inc., Vol. 53, p. 1-8 8 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Carbon nitride
Cathodes
Zirconium
Fuel cells
Electrolytes