A carbon monoxide tolerant anode catalyst for polymer...

Details A carbon monoxide tolerant anode catalyst for polymer... A carbon monoxide tolerant anode catalyst for polymer...

H - Electricity

01

M

H01M 8/02 (2006.01) B01J 23/46 (2006.01) H01M 4/92 (2006.01) H01M 4/86 (2006.01)

Patent

CA 2238123

The invention relates to a platinum supported catalyst for the anode in a polymer electrolyte membrane (PEM) fuel cell with high resistance to poisoning by carbon monoxide. The catalyst contains the noble metals platinum and ruthenium on a finely divided, conductive support material. It is characterised in that the two noble metals are not alloyed with each other and are present in highly dispersed form on the support material, wherein the crystallite size of the platinum is less than 2 nm and that of the ruthenium is less than 1 nm.

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