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Method for recovering catalytic elements from fuel cell membrane electrode assemblies

United States Patent

June 26, 2012
View the Complete Patent at the US Patent & Trademark Office
A method for recovering catalytic elements from a fuel cell membrane electrode assembly is provided. The method includes converting the membrane electrode assembly into a particulate material, wetting the particulate material, forming a slurry comprising the wetted particulate material and an acid leachate adapted to dissolve at least one of the catalytic elements into a soluble catalytic element salt, separating the slurry into a depleted particulate material and a supernatant containing the catalytic element salt, and washing the depleted particulate material to remove any catalytic element salt retained within pores in the depleted particulate material.
Shore; Lawrence (Edison, NJ), Matlin; Ramail (Berkeley Heights, NJ), Heinz; Robert (Ludwigshafen, DE)
12/ 466,903
May 15, 2009
GOVERNMENT SUPPORT The work described herein was supported, in part, by grant DE-FC36-03GO13104 from the United States Department of Energy. Therefore, the U.S. Government may have certain rights.