O-F-BRB-1 Novel Metal@Titania Yolk-Shell Photocatalysts For Hydrogen Production: The Role of the Metal Revisited

Friday, June 7, 2013: 8:00 AM
Ballroom B (Galt House Hotel)
Robert Dillon, Ji Bong Joo, Christopher Bardeen, Yadong Yin and Francisco Zaera, University of California Riverside, USA.
Evidence from photophysical and photocatalytic measurements using Au@TiO2 and Void@TiO2 core-shell samples is provided to argue against the conventional explanation for photocatalysis with metal/semiconductor catalysts and to support an alternative model where hydrogen reduction occurs on the semiconductor surface and where the metal promotes recombination of H· to H2.

Extended Abstracts: