Catalyst for polymer solid electrolyte fuel cell, membrane...

Details Catalyst for polymer solid electrolyte fuel cell, membrane... Catalyst for polymer solid electrolyte fuel cell, membrane...

2008-03-17

2011-12-20

Ryan, Patrick (Department: 1726)

Chemistry: electrical current producing apparatus, product, and

Fuel cell, subcombination thereof, or method of making or...

Electrode structure or composition

C429S524000, C429S525000, C429S532000, C502S232000, C502S262000

Reexamination Certificate

active

08080347

ABSTRACT:
There is provided a catalyst for a fuel cell, which simultaneously realizes excellent catalytic activity and catalytic stability. The catalyst for a fuel cell comprises a fine particle of a metal represented by formula:in-line-formulae description="In-line Formulae" end="lead"?PtxRuySizT1uin-line-formulae description="In-line Formulae" end="tail"?wherein T1 represents at least one element selected from the group consisting of nickel (Ni), tungsten (W), vanadium (V), and molybdenum (Mo); x=30 to 90 atomic %; y=0 to 50 atomic %; z=0.5 to 20 atomic %; and u=0.5 to 40 atomic %, or comprises a fine particle of a metal represented by formula:in-line-formulae description="In-line Formulae" end="lead"?PtxRuySizT2uin-line-formulae description="In-line Formulae" end="tail"?wherein T2 represents at least one element selected from the group consisting of hafnium (Hf), tin (Sn), zirconium (Zr), niobium (Nb), titanium (Ti), tantalum (Ta), chromium (Cr), and aluminum (Al); x=30 to 90 atomic %; y=0 to 50 atomic %; z=0.5 to 20 atomic %; and u=0.5 to 40 atomic %.

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