Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Organic compound containing
Patent
1993-04-12
1994-12-13
Konopka, Paul E.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Organic compound containing
502101, 502159, 502162, 502165, 502182, 502185, B01J 3122, B01J 3106, B01J 2118, H01M 488
Patent
active
053729811
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.
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General Motors Corporation
Konopka Paul E.
Plant Lawrence B.
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