Electronic States and Transport Phenomena of Pt Nanoparticle Catalysts Supported on Nb-Doped SnO2 for Polymer Electrolyte Fuel Cells

2019 ◽  
Vol 11 (38) ◽  
pp. 34957-34963 ◽  
Author(s):  
Katsuyoshi Kakinuma ◽  
Kohei Suda ◽  
Ryo Kobayashi ◽  
Tetsuro Tano ◽  
Chisato Arata ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Polymer Electrolyte ◽  
Transport Phenomena ◽  
Electronic States ◽  
Polymer Electrolyte Fuel Cells ◽  
Pt Nanoparticle ◽  
Nanoparticle Catalysts

scholarly journals Investigation of Nanographene Produced by In-Liquid Plasma for Development of Highly Durable Polymer Electrolyte Fuel Cells

2018 ◽  
Vol 4 (4) ◽  
pp. 65 ◽  
Author(s):  
Vladislav Gamaleev ◽  
Kengo Kajikawa ◽  
Keigo Takeda ◽  
Mineo Hiramatsu
Keyword(s):  
Power Generation ◽  
Fuel Cells ◽  
Polymer Electrolyte ◽  
Amorphous Carbon ◽  
Carbon Nanostructures ◽  
Polymer Electrolyte Fuel Cells ◽  
Membrane Electrode ◽  
Catalytic Layer ◽  
Pt Nanoparticle ◽  
Durable Polymer

Recently, polymer electrolyte fuel cells (PEFCs) are attracting a lot of attention owing to their small size and relatively low working temperature (below 80 °C), which enables their usage in automobiles and household power generation. However, PEFCs have a problem with decreased output caused by corrosion of amorphous carbon, which is commonly used as a catalytic carrier. This problem could be solved by the usage of carbon nanostructures with a stronger crystal structure than amorphous carbon. In this work, nanographene supported by Pt nanoparticles was synthesized and examined for possible applications in the development of PEFCs with increased durability. Nanographene was synthesized by in-liquid plasma generated in ethanol using alternating current (AC) high voltage. A membrane electrode assembly (MEA) was constructed, where Pt nanoparticle-supported nanographene was used as the catalytic layer. Power generation characteristics of the MEA were evaluated and current density for the developed MEA was found to be approximately 240 mA/cm2. From the electrochemical evaluation, it was found that the durability of Pt nanoparticle-supported nanographene was about seven times higher than that of carbon black.

STUDY OF WATER TRANSPORT PHENOMENA IN POLYMER ELECTROLYTE FUEL CELLS IN THE THROUGH-PLANE DIRECTION

2015 ◽  
Vol 27 (2-4) ◽  
pp. 117-132
Author(s):  
Hideki Murakawa ◽  
Katsumi Sugimoto ◽  
Masataka Sawada ◽  
Masataka Nishizaki ◽  
Hitoshi Asano ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Polymer Electrolyte ◽  
Water Transport ◽  
Transport Phenomena ◽  
Polymer Electrolyte Fuel Cells ◽  
Plane Direction

scholarly journals A Critical Review of Modeling Transport Phenomena in Polymer-Electrolyte Fuel Cells

2014 ◽  
Vol 161 (12) ◽  
pp. F1254-F1299 ◽  
Author(s):  
Adam Z. Weber ◽  
Rodney L. Borup ◽  
Robert M. Darling ◽  
Prodip K. Das ◽  
Thomas J. Dursch ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Polymer Electrolyte ◽  
Critical Review ◽  
Transport Phenomena ◽  
Polymer Electrolyte Fuel Cells ◽  
Modeling Transport
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