Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Making catalytic electrode – process only
Patent
1992-06-05
1993-08-31
Konopka, Paul E.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Making catalytic electrode, process only
204294, 264 295, 427115, 429 42, 429 44, 502182, 502185, H01M 488, H01M 496, B01J 2118, B01J 2370
Patent
active
052408930
ABSTRACT:
In a preferred method, electrodes are formed with a catalyzed carbon substrate for use in an electrochemical cell. The catalyzed carbon substrate basically comprises carbon particles having internal and external surfaces defining a plethora of pores; and a pyrolyzed metal-doped copolymer material supported on the internal and external surfaces of the carbon particles. The pyrolyzed metal-doped material is a metal
itrogen-carbon complex where the metal is complexed with the heterocarbon
itrogen.
Substrates of catalyzed carbon particles are prepared by first reacting an amine compound with formaldehyde and/or polymerized formaldehyde in solution, in the presence of a catalyst, carbon particles and a metal salt, at a temperature and at a rate of stirring sufficient to provide a polymerized product in the form of a gel. Then the gel is heated (pyrolyzed) in an inert atmosphere for a time sufficient to provide the catalytic carbon particles in the form of a powder. The powder is then mixed with a binder, and electrodes are pressed and formed into a suitably shaped substrate of catalytic carbon.
REFERENCES:
patent: 3297490 (1967-01-01), Barber et al.
patent: 3755193 (1973-08-01), Luft et al.
patent: 3806466 (1974-04-01), Bird et al.
patent: 3985578 (1976-10-01), Witherspoon
patent: 4849251 (1989-07-01), Tanaka
patent: 5151515 (1992-09-01), Cisar
patent: 5171644 (1992-12-01), Tsou et al.
E. B. Yeager, J. A. Molla and S. Gupta, Proceedings of the Workshop on Carbon, Proceedings vol. 84-5, The Electrochemical Society Inc., Aug. 17-19, 1983.
G. Richter & G. Luft, Proceedings of the 4th Int'l Symposium on Fuel Cells, Antwerp Belgium, 1972.
G. Gruenig, Electrochimica Acta, 31, No. 8, 1408 (1984).
General Motors Corporation
Konopka Paul E.
Plant Lawrence B.
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