Compositions of nanometal particles containing a metal or...

Details Compositions of nanometal particles containing a metal or... Compositions of nanometal particles containing a metal or...

2011-06-07

2011-06-07

Michener, Jennifer K. (Department: 1728)

Chemistry: electrical current producing apparatus, product, and

Fuel cell, subcombination thereof, or method of making or...

Electrode structure or composition

C252S506000, C502S185000

Reexamination Certificate

active

07955755

ABSTRACT:
Cathodes suitable for use in direct methanol fuel cells are disclosed. A cathode can comprise a composition supported on a conductive substrate, where the composition comprises: reactive nano-particles each consisting essentially of a core of metal and/or metal alloy and a shell of an oxide of the metal and/or metal alloy in the core; platinum and/or platinum alloy particles devoid of an oxide shell; and an ionomer. The metal nanoparticles can comprise one or more of palladium, chromium, manganese, nickel, iron, copper, gold, lanthanum, cerium, tin, sulfur, selenium, cobalt, silver, and alloys thereof. Direct methanol fuel cell incorporating these cathodes are also disclosed.

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