Chemistry: electrical current producing apparatus – product – and – Having earth feature
Reexamination Certificate
2008-05-27
2008-05-27
Crepeau, Jonathan (Department: 1795)
Chemistry: electrical current producing apparatus, product, and
Having earth feature
C429S006000, C423S448000, C502S101000
Reexamination Certificate
active
07378178
ABSTRACT:
A catalyst support material useful in a membrane electrode assembly is presented. The support catalyst material is elongate electrically anisotropic particles of flexible graphite, and the membrane electrode assembly includes a pair of electrodes, an ion exchange membrane having opposed surfaces positioned between the electrodes and a catalyst material on the inventive support, at least a portion of an opposed surface of the ion exchange membrane being adjacent the catalyst which is supported on the elongate electrically anisotropic particles of flexible graphite sheet.
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Carbon as a Catalyst Support in Fuel Cells, in The Electrochmical Society, Inc., Proceedings vol. 84-5, pp. 221-237, Cleveland, Ohio 1983.
WO 95/16287, International Publ. Date: Jun. 15, 19905, International Appln. No. PCT/CA94/00673, International Filing Date: Dec. 9, 1994.
Cartiglia James R.
Crepeau Jonathan
GrafTech International Holdings Inc.
Hodge Robert
Waddey & Patterson PC
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