Chemistry: electrical current producing apparatus – product – and – Having earth feature
Patent
1999-08-18
2000-12-05
Bell, Bruce F.
Chemistry: electrical current producing apparatus, product, and
Having earth feature
429 41, 429 44, 427115, 4271261, 4274191, 502101, 502159, 252500, 252512, 2525215, 521 27, 106 3164, 106 3192, H01M 486
Patent
active
061564494
ABSTRACT:
A catalyst layer on a substrate material which contains a proton-conducting polymer (ionomer), electrically conductive carbon particles and fine particles of at least one precious metal. The catalyst layer is obtainable by coating the substrate material with an ink which contains a dispersion of the carbon particles and at least one organic precious metal complex compound in a solution of the ionomer, and drying the coating below a temperature at which the ionomer or the substrate material is thermally damaged, the precious metals in the complex compounds being present with an oxidation number of 0 and the complex compounds being thermally decomposed during drying to form the fine precious metal particles.
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Fehl Knut
Karch Ralf
Starz Karl-Anton
Zuber Ralf
Bell Bruce F.
Degussa-Huls Aktiengellschaft
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