Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Reexamination Certificate
2006-10-24
2006-10-24
Kalafut, Stephen J. (Department: 1745)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Plural component system comprising a - group i to iv metal...
C502S215000, C502S216000, C502S219000, C502S220000, C502S222000, C423S509000, C423S561100
Reexamination Certificate
active
07125820
ABSTRACT:
Non-noble metal transition metal catalysts can replace platinum in the oxidation reduction reaction (ORR) used in electrochemical fuel cells. A RuxSe catalyst is prepared with comparable catalytic activity to platinum. An environmentally friendly aqueous synthetic pathway to this catalyst is also presented. Using the same aqueous methodology, ORR catalysts can be prepared where Ru is replaced by Mo, Fe, Co, Cr, Ni and/or W. Similarly Se can be replaced by S.
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Ballard Power Systems Inc.
Kalafut Stephen J.
Seed IP Law Group PLLC
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