Ngimat Co.

Frank C Witbrod

Andrew Tye Hunt

Paul D Smith

William John Dalzell, Jr

Stein S Lee

Peter W Faguy

Mark Batich

William Hoos

William Harm

Charles McKendrie Quillian, V

Joanne Yardlyne Smalley

To form an ionomer-based catalytic layer on a porous substrate, a heat source () is used to dry an ionomer-containing spray () so that it does not substantially liquid flow on the substrate (). The ionomer spray () may contain a catalyst. A spray () of mixed material for forming the catalytic layer is entrained by a gas stream and is heated and directed to a substrate surface (). For hydrogen/oxygen fuel cells, catalytic material is incorporated into the proton-conducting membrane () to convert diffusing oxygen and hydrogen to water to reduce potential loss at the electrodes and maintain hydration of the proton-conducting membrane ().

Fuel cell membranes and catalytic layers

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Cumming, GA, United States of America

Frank C Witbrod