Catalyst for membrane electrode assembly and method of making

Details Catalyst for membrane electrode assembly and method of making Catalyst for membrane electrode assembly and method of making

1997-10-10

1999-03-09

Bell, Bruce F.

Chemistry: electrical current producing apparatus, product, and

Having earth feature

204279, 204280, 204290R, 428195, 428202, 428201, 428209, 428221, 428323, 428327, 428336, 428338, 428357, 428364, 428372, 428378, H01M 486

Patent

active

058798277

ABSTRACT:
Nanostructured elements are provided for use in the electrode of a membrane electrode assembly for use in fuel cells, sensors, electrochemical cells, and the like. The nanostructured elements comprise acicular microstructured support whiskers bearing acicular nanoscopic catalyst particles which may comprise alternating layers of catalyst materials, which may comprise a surface layer that differs in composition from the bulk composition of the catalyst particles, and which may demonstrate improved carbon monoxide tolerance.

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