Ag@TiO2-TiO2 NF As a Visible Light Photoanode in Photocatalytic Fuel Cells

Sunday, 1 October 2017: 17:30
Maryland 2 (Gaylord National Resort and Convention Center)
G. Lui, G. Jiang, M. Fowler, A. Yu, and Z. Chen (University of Waterloo)
An Ag@TiO2-TiO2 flower composite is used as a photoanode in a photoelectrochemical cell. The photoanode shows exceptional performance in the simultaneous photodegradation of organic compounds and photogeneration of electrical power. The TiO2 flower composite provides a hierarchical morphology that greatly improves the electronic properties of the anode. The addition of small quantities of Ag@TiO2 immediately improves the short-circuit current of a methanol photocatalytic fuel cell, and the optimal addition of Ag@TiO2 enhances the maximum power output of the cell under solar simulated light. Compared to commercial TiO2 material, the Ag@TiO2-TiO2 flower composite improves the short-circuit current of the photocatalytic fuel cell by 97% (1.7 mA cm-2) and the maximum power by 131% (0.6 mW cm-2) under solar simulated light.