Co-tolerant anode catalyst for PEM fuel cells and a process for

Details Co-tolerant anode catalyst for PEM fuel cells and a process for Co-tolerant anode catalyst for PEM fuel cells and a process for

1998-05-19

1999-12-28

Bell, Bruce F.

Chemistry: electrical current producing apparatus, product, and

Having earth feature

429 40, 429 41, 429 42, 429 30, 429 33, 204282, 204283, 204290F, 502101, H01M 486

Patent

active

060079347

ABSTRACT:
A platinum supported catalyst is disclosed for the anode in a 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. 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.

REFERENCES:
patent: 5786026 (1998-07-01), Seko et al.
patent: 5795669 (1998-08-01), Wilkinson et al.
patent: 5795672 (1998-08-01), Dearnaley
patent: 5856036 (1999-01-01), Smotkin et al.
patent: 5861222 (1999-01-01), Fischer et al.

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