Chemistry: electrical current producing apparatus – product – and – Having earth feature
Patent
1982-07-19
1984-12-11
Skapars, Anthony
Chemistry: electrical current producing apparatus, product, and
Having earth feature
429 45, 204293, 502101, 502527, H01M 486
Patent
active
044878184
ABSTRACT:
An anode for hydrogen oxidation in a fuel cell is formed from a host matrix including at least one transition element which is structurally modified by the incorporation of at least one modifier element to improve its catalytic properties. The catalytic body is based on a disordered non-equilibrium material designed to have a high density of catalytically active sites, resistance to poisoning, and long operating life. Modifier elements, including Ti, Mo, Zr, Mg, V, Si or Al, structurally modify the local chemical environments of a nickel or other transition element host matrix to form the catalytic materials of the anode. The improved low overvoltage catalytic materials of the anode of the present invention increase the operating efficiencies of fuel cells employing such anodes. The catalytic materials can be deposited as a layer on the surface of porous electrode substrates to form a gas diffusion anode or can be formed as a gas diffusion electrode.
REFERENCES:
patent: 3961987 (1976-06-01), Mund et al.
patent: 4192907 (1980-03-01), Jalan et al.
patent: 4255247 (1981-03-01), Oda et al.
Ovshinsky Stanford R.
Reger Arie
Sapru Krishna
Energy Conversion Devices Inc.
Norris Lawrence G.
Skapars Anthony
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