FUEL CELL ANODE CATALYST AND MANUFACTURING METHOD THEREFOR
|Posted date||Apr 26, 2013|
|International application number||2012JP057109|
|International publication number||WO 2012/133017|
|Date of international filing||Mar 21, 2012|
|Date of international publication||Oct 4, 2012|
|Title||FUEL CELL ANODE CATALYST AND MANUFACTURING METHOD THEREFOR|
Provided is a fuel cell anode catalyst in which a platinum-ruthenium alloy is supported on a carbon material, and a manufacturing method therefor. The molar ratio (Pt:Ru) of the alloy is in the range of 1:1-5. When the coordination numbers of the Pt atom and the Ru atom of an atom site in the alloy, as measured by x-ray absorption fine structure, are expressed as N(Pt) and N(Ru) respectively, then N(Ru)/(N(Pt)+N(Ru)) in the platinum site is in the range of 0.8-1.1 times the theoretical value, and N(Pt)/(N(Ru)+N(Pt)) in the Ru site is in the range of 0.8-1.1 times the theoretical value. The average particle diameter of the alloy is in the range of 1-5 nm, and the standard deviation for the grain size is in the range of 2 nm or lower. Further provided is: a fuel cell anode with an anode composition layer, on a substrate surface, which contains the catalyst and a proton conductive polymer
a fuel cell membrane electrode assembly with a polymer electrolyte membrane sandwiched between the anode and a cathode
and a fuel cell containing the fuel cell membrane electrode assembly.
|IPC(International Patent Classification)||
Contact Information for " FUEL CELL ANODE CATALYST AND MANUFACTURING METHOD THEREFOR "
- National University Corporation Hokkaido University Institute for the Promotion of Business-Regional Collaboration
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