Platinum-chromium-copper/nickel fuel cell catalyst

Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Inorganic carbon containing

Reexamination Certificate

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C502S182000, C502S185000, C502S301000, C420S442000, C420S444000, C420S456000, C420S457000, C420S468000, C420S485000, C420S497000, C420S582000, C420S583000, C420S584100, C420S587000, C420S588000, C420S428000, C420S466000, C420S441000, C420S443000, C420S445000, C420S446000, C420S447000, C420S448000, C420S449000, C420S450000, C420S451000, C420S452000, C420S453000, C420S454000, C420S455000, C420S458000, C420S459000, C420S460000, C420S469000, C420S580000

Reexamination Certificate

active

07662740

ABSTRACT:
A fuel cell catalyst comprising platinum, chromium, and copper, nickel or a combination thereof. In one or more embodiments, the concentration of platinum is less than 50 atomic percent, and/or the concentration of chromium is less than 30 atomic percent, and/or the concentration of copper, nickel, or a combination thereof is at least 35 atomic percent.

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