Particle size dependence on oxygen reduction reaction activity of electrodeposited TaO(x) catalysts in acidic media.

Phys Chem Chem Phys

Department of Chemical System Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.

Published: January 2014

The size dependence of the oxygen reduction reaction activity was studied for TaO(x) nanoparticles electrodeposited on carbon black for application to polymer electrolyte fuel cells (PEFCs). Compared with a commercial Ta2O5 material, the ultrafine oxide nanoparticles exhibited a distinctively high onset potential different from that of the bulky oxide particles.

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http://dx.doi.org/10.1039/c3cp54036gDOI Listing

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