The preparation and catalytic properties of gold-based alloy nanoparticles supported on carbon materials were studied. The electrocatalytic activity for the methanol oxidation reaction and the oxygen reduction reaction was characterized. To delineate the size and composition correlation of the catalytic properties, an array of surface analytical techniques was employed to probe the structural and morphological evolution and reconstitution of the nanoparticles upon catalytic activation. The combined results of these characterizations and preliminary comparison on the catalytic activity with those from commercial catalysts provided insights into the viability of tailoring the nanostructured catalysts in terms of size and composition for fuel cell catalysis. This is an abstract of a paper presented at the 228th ACS National Meeting (Philadelphia, PA, 8/22-26/2004).
ASJC Scopus subject areas
- Chemical Engineering(all)