Carbon monoxide tolerant platinum-tantalum alloyed catalyst

Details Carbon monoxide tolerant platinum-tantalum alloyed catalyst Carbon monoxide tolerant platinum-tantalum alloyed catalyst

1991-01-17

1993-02-02

Kalafut, Stephen

Chemistry: electrical current producing apparatus, product, and

Having earth feature

502185, 502339, H01M 492

Patent

active

051837137

ABSTRACT:
Carbon monoxide poisoning of anode catalysts in phosphoric acid fuel cells reduces the cell performance. The carbon monoxide absorbs onto the catalyst, blocking hydrogen oxidation sites. A carbon monoxide tolerant platinum-tantalum alloyed catalyst includes between about 2 wt % and about 50 wt % platinum, between about 2 atom % and 10 atom % tantalum deposited on a support. This catalyst is particularly useful in fuel cell system applications where the fuel stream may contain carbon monoxide.

REFERENCES:
patent: 3274031 (1966-09-01), Maget et al.
patent: 3424619 (1969-01-01), Adlhart et al.
patent: 3762957 (1973-10-01), Breault et al.
patent: 3765947 (1973-10-01), Felten et al.
patent: 4044193 (1977-08-01), Petrow et al.
patent: 4186110 (1980-01-01), Jalan et al.
patent: 4373014 (1983-02-01), Landsman et al.
CO Adsorption on PT(111) Doped with TIO,FEO,ZNO, and FE, and PT AD-Atoms. Molecular Orbital Study of CO Dopant Interactions, A. B. Anderson and D. Q. Dowd, J. Phys. Chem 1987, 91, 869-873.
Catalytic Effects of HG and TI Submonolayers on the Electrooxidation of Formic Acid on PT, Th. Hartung, J. Willsau and J. Heitbaum, J. Electroanal. Chem., 205 (1986) 135-149.
Engelhard, WPI Abstract No. 74-48728V, 1974.

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