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Research Output 1990 2016

  • 3872 Citations
  • 32 h-Index
  • 99 Article
  • 62 Conference contribution
  • 1 Chapter
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Article
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

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
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
2013
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
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
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
2012
29 Citations

Oxygen reduction reaction on tantalum oxide-based catalysts prepared from TaC and TaN

Ohgi, Y., Ishihara, A., Matsuzawa, K., Mitsushima, S., Ota, K. I., Matsumoto, M. & Imai, H. 2012 Apr 30 In : Electrochimica Acta. 68, p. 192-197 6 p.

Research output: Contribution to journalArticle

Oxygen
Tantalum carbide
Nitrides
Oxidation
Tantalum oxides
1 Citations

Solubilities of la and Ni on LaNiO 3 in Li/K carbonate eutectic with La 2O 3

Matsuzawa, K., Zhai, S., Ota, K. I. & Mitsushima, S. 2012 Aug 28 In : Chemistry Letters. 41, 8, p. 817-819 3 p.

Research output: Contribution to journalArticle

Carbonates
Solubility
Eutectics
Molten materials
2011
3 Citations

A mesothermal fuel cell using diethylmethylammonium trifluoromethanesulfonate absorbed membrane with H3PO4 addition and various amount of electrolyte loading in catalyst layer

Inoue, D., Mitsushima, S., Matsuzawa, K., Lee, S. Y., Yasuda, T., Watanabe, M. & Ota, K. I. 2011 May 1 In : Electrochemistry. 79, 5, p. 377-380 4 p.

Research output: Contribution to journalArticle

Membranes
Acoustic impedance
Fuel cells
Electrolytes
Electrodes
2 Citations
Oxygen
Catalyst activity
Reactive sputtering
Tantalum oxides
Tantalum
1 Citations

Catalytic activity for oxygen reduction reaction on tantalum oxide-based compounds (2) active sites of taon thin film catalysts and role of carbon

Ishihara, A., Kikuchi, A., Ohgi, Y., Matsuzawa, K., Mitsushima, S., Ota, K. I., Matsumoto, M. & Imai, H. 2011 Oct 1 In : Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals. 75, 10, p. 552-556 5 p.

Research output: Contribution to journalArticle

Oxygen
Carbon
Nitrogen
Adsorption
Thin films
32 Citations

Development of group 4 and 5 metal oxide-based cathodes for polymer electrolyte fuel cell

Ota, K. I., Ohgi, Y., Nam, K. D., Matsuzawa, K., Mitsushima, S. & Ishihara, A. 2011 Jun 15 In : Journal of Power Sources. 196, 12, p. 5256-5263 8 p.

Research output: Contribution to journalArticle

Carbon nitride
Oxides
Oxygen
Defects
Ionization potential
9 Citations
Oxygen
Catalyst activity
Carbon nitride
Tantalum
Fuel cells
1 Citations

Pt-Ir-SnO 2/C electrocatalysts for ethanol oxidation in acidic media

Zhao, L., Mitsushima, S., Ishihara, A., Matsuzawa, K. & Ota, K. I. 2011 Dec 1 In : Cuihua Xuebao/Chinese Journal of Catalysis. 32, 12, p. 1856-1863 8 p.

Research output: Contribution to journalArticle

Catalysts
Ethanol
Oxidation
Direct ethanol fuel cells (DEFC)
Catalyst selectivity
6 Citations

Pt-Ir-SnO 2/C electrocatalysts for ethanol oxidation in acidic media

Zhao, L., Mitsushima, S., Ishihara, A., Matsuzawa, K. & Ota, K. I. 2011 Nov 1 In : Chinese Journal of Catalysis. 32, 11-12, p. 1856-1863 8 p.

Research output: Contribution to journalArticle

Catalysts
Ethanol
Oxidation
Direct ethanol fuel cells (DEFC)
Catalyst selectivity
1 Citations

Quantitative analysis of electrooxidation products on platinum for direct ethanol fuel cell

Matsuzawa, K., Takahashi, T., Ishihara, A., Mitsushima, S. & Ota, K. I. 2011 May 1 In : Electrochemistry. 79, 5, p. 419-423 5 p.

Research output: Contribution to journalArticle

Electrooxidation
Direct ethanol fuel cells (DEFC)
Byproducts
Platinum
Chemical analysis

Separation of oxygen reduction reaction from total reduction current on Pt/C using rotating ring disk electrode

Mitsushima, S., Fujita, Y., Nagahara, Y., Sugawara, S., Matsuzawa, K., Shinohara, K. & Ota, K. I. 2011 Jan 1 In : Electrochemistry. 79, 1, p. 24-29 6 p.

Research output: Contribution to journalArticle

Electrodes
Oxygen
Shielding
Catalyst activity
Protective atmospheres
6 Citations

Simultaneous Electrochemical Measurement of Oxygen Reduction and Pt Oxide Formation/Reduction on Pt Nanoparticle Surface

Sugawara, S., Tsujita, K., Mitsushima, S., Shinohara, K. & Ota, K. I. 2011 Mar 1 In : Electrocatalysis. 2, 1, p. 60-68 9 p.

Research output: Contribution to journalArticle

Oxygen
Oxides
Reaction kinetics
Nanoparticles
Reaction intermediates
6 Citations

Solubilities of NiO and LaNiO3 in Li/Na eutectic carbonate with rare-earth oxide

Matsuzawa, K., Akinaga, Y., Mitsushima, S. & Ota, K. I. 2011 Jun 1 In : Journal of Power Sources. 196, 11, p. 5007-5011 5 p.

Research output: Contribution to journalArticle

Carbonates
Solubility
Molten materials
Oxides
Metals
4 Citations

Zirconium oxide-based compounds as non-Pt cathode for polymer electrolyte fuel cell

Ukita, K., Ishihara, A., Ohgi, Y., Matsuzawa, K., Mitsushima, S. & Ota, K. I. 2011 May 1 In : Electrochemistry. 79, 5, p. 340-342 3 p.

Research output: Contribution to journalArticle

Zirconia
Oxygen
Fuel cells
Cathodes
Thermodynamic properties
2010
2 Citations

Evaluation of Solubility of Ru in Acidic Solution

Mitsushima, S., Uzuka, S., Matsuzawa, K. & Ota, K. I. 2010 Feb 4 In : Electrocatalysis. 1, 1, p. 83-86 4 p.

Research output: Contribution to journalArticle

Fuel cells
Anodes
Electrolytes
Ions
Polymers
4 Citations

Hydrogen energy system and environmental impact factor

Ota, K. I., Ishihara, A., Matsuzawa, K. & Mitsushima, S. 2010 Dec 1 In : Electrochemistry. 78, 12, p. 970-975 6 p.

Research output: Contribution to journalArticle

Environmental impact
Hydrogen
Carbon
Water
Earth (planet)
25 Citations
Oxygen
Zirconia
Ionization potential
Thermodynamic properties
Catalysts
8 Citations

Mass transportation in diethylmethylammonium trifluoromethanesulfonate for fuel cell applications

Mitsushima, S., Shinohara, Y., Matsuzawa, K. & Ota, K. I. 2010 Sep 1 In : Electrochimica Acta. 55, 22, p. 6639-6644 6 p.

Research output: Contribution to journalArticle

Hydrogen
Fuel cells
Oxygen
Acids
Mass transportation
26 Citations

Partially oxidized niobium carbonitride as a non-platinum catalyst for the reduction of oxygen in acidic medium

Nam, K. D., Ishihara, A., Matsuzawa, K., Mitsushima, S., Ota, K. I., Matsumoto, M. & Imai, H. 2010 Oct 1 In : Electrochimica Acta. 55, 24, p. 7290-7297 8 p.

Research output: Contribution to journalArticle

Oxygen
Catalysts
X ray absorption spectroscopy
Carbon nitride
Ionization potential
88 Citations

Progress in non-precious metal oxide-based cathode for polymer electrolyte fuel cells

Ishihara, A., Ohgi, Y., Matsuzawa, K., Mitsushima, S. & Ota, K. I. 2010 Nov 30 In : Electrochimica Acta. 55, 27, p. 8005-8012 8 p.

Research output: Contribution to journalArticle

Oxides
Oxygen
Cathodes
Catalysts
Metals
62 Citations

Tantalum oxide-based compounds as new non-noble cathodes for polymer electrolyte fuel cell

Ishihara, A., Tamura, M., Matsuzawa, K., Mitsushima, S. & Ota, K. I. 2010 Nov 1 In : Electrochimica Acta. 55, 26, p. 7581-7589 9 p.

Research output: Contribution to journalArticle

Oxygen
Tantalum
Tantalum oxides
Fuel cells
Catalyst activity
25 Citations

The influence of polymer electrolyte fuel cell cathode degradation on the electrode polarization

Aoki, T., Matsunaga, A., Ogami, Y., Maekawa, A., Mitsushima, S., Ota, K. I. & Nishikawa, H. 2010 Apr 15 In : Journal of Power Sources. 195, 8, p. 2182-2188 7 p.

Research output: Contribution to journalArticle

Catalysts
Diffusion in gases
Polarization
Degradation
Fuel cells
46 Citations

Zirconium oxide-based compound as new cathode without platinum group metals for PEFC

Ohgi, Y., Ishihara, A., Matsuzawa, K., Mitsushima, S. & Ota, K. 2010 Nov 1 In : Journal of the Electrochemical Society. 157, 6

Research output: Contribution to journalArticle

Carbon nitride
Zirconium
Oxygen
Fuel cells
Cathodes
2009
17 Citations

Partially oxidized niobium carbonitride as non-platinum cathode for PEFC

Nam, K. D., Ishihara, A., Matsuzawa, K., Mitsushima, S. & Ota, K. I. 2009 Sep 18 In : Electrochemical and Solid-State Letters. 12, 11

Research output: Contribution to journalArticle

Carbon nitride
Niobium
Fuel cells
Catalyst activity
Cathodes
39 Citations

Performance decay of proton-exchange membrane fuel cells under open circuit conditions induced by membrane decomposition

Sugawara, S., Maruyama, T., Nagahara, Y., Kocha, S. S., Shinohra, K., Tsujita, K., Mitsushima, S. & Ota, K. I. 2009 Feb 15 In : Journal of Power Sources. 187, 2, p. 324-331 8 p.

Research output: Contribution to journalArticle

Reaction kinetics
Negative ions
Membranes
Oxygen
Proton exchange membrane fuel cells (PEMFC)
2008
36 Citations

Catalytic activity of partially oxidized transition-metal carbide-nitride for oxygen reduction reaction in sulfuric acid

Ohgi, Y., Ishihara, A., Shibata, Y., Mitsushima, S. & Ota, K. I. 2008 Jun 5 In : Chemistry Letters. 37, 6, p. 608-609 2 p.

Research output: Contribution to journalArticle

Transition metals
Nitrides
Carbides
Catalyst activity
Catalysts
49 Citations
Oxygen
Catalyst activity
Reactive sputtering
Sulfuric acid
Zirconium
88 Citations

Dissolution of platinum in acidic media

Mitsushima, S., Koizumi, Y., Uzuka, S. & Ota, K. I. 2008 Dec 30 In : Electrochimica Acta. 54, 2, p. 455-460 6 p.

Research output: Contribution to journalArticle

Solubility
Platinum
Dissolution
Oxygen
Electrolytes
66 Citations

Partially oxidized tantalum carbonitrides as a new nonplatinum cathode for PEFC-1-

Ishihara, A., Shibata, Y., Mitsushima, S. & Ota, K. 2008 Mar 14 In : Journal of the Electrochemical Society. 155, 4

Research output: Contribution to journalArticle

Oxygen
Catalyst activity
Fuel cells
Cathodes
Electrolytes
88 Citations

Tantalum (oxy)nitrides prepared using reactive sputtering for new nonplatinum cathodes of polymer electrolyte fuel cell

Ishihara, A., Doi, S., Mitsushima, S. & Ota, K. I. 2008 Jun 30 In : Electrochimica Acta. 53, 16, p. 5442-5450 9 p.

Research output: Contribution to journalArticle

Oxygen
Substrates
Temperature
Catalyst activity
Ionization potential