Carbon aerogel electrodes for direct energy conversion

Details Carbon aerogel electrodes for direct energy conversion Carbon aerogel electrodes for direct energy conversion

1994-01-21

1997-02-11

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Having earth feature

429 46, 502402, 502416, H01M 496

Patent

active

056019386

ABSTRACT:
A direct energy conversion device, such as a fuel cell, using carbon aerogel electrodes, wherein the carbon aerogel is loaded with a noble catalyst, such as platinum or rhodium and soaked with phosphoric acid, for example. A separator is located between the electrodes, which are placed in a cylinder having plate current collectors positioned adjacent the electrodes and connected to a power supply, and a pair of gas manifolds, containing hydrogen and oxygen positioned adjacent the current collectors. Due to the high surface area and excellent electrical conductivity of carbon aerogels, the problems relative to high polarization resistance of carbon composite electrodes conventionally used in fuel cells are overcome.

REFERENCES:
patent: 4806290 (1989-02-01), Hopper et al.
patent: 4818640 (1989-04-01), Fukuda et al.
patent: 4873218 (1989-10-01), Pekala
patent: 4997804 (1991-03-01), Pekala
patent: 5260855 (1993-11-01), Kaschmitter et al.
patent: 5266177 (1993-11-01), Watanabe et al.

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