Catalyst agglomerates for membrane electrode assemblies

Details Catalyst agglomerates for membrane electrode assemblies Catalyst agglomerates for membrane electrode assemblies

2005-06-28

2005-06-28

Marcantoni, Paul (Department: 1755)

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Organic compound containing

C429S047000, C502S101000, C029S623100

Reexamination Certificate

active

06911411

ABSTRACT:
A method of preparing catalyst agglomerates for electrochemical devices is provided. The method comprises dispersing particles of a catalyst in a non-aqueous solvent to form a dispersion of the catalyst, adding an ion conducting polymer in a dilute solution to the dispersion of the catalyst under agitation to form catalyst agglomerates, and stirring the dispersion of the catalyst and the catalyst agglomerates to control the growth of the agglomerates. A directly applicable catalyst composition is also provided. The catalyst composition comprises the catalyst agglomerates prepared according to the present invention, a solvent to plasticize surfaces of the catalyst agglomerates and the membrane, and a non-aqueous carrier solvent.

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