(222c) SiO2 As a Protective Layer in Visible-Light Induced Hydrogen Production
- Conference: AIChE Annual Meeting
- Year: 2017
- Proceeding: 2017 Annual Meeting
- Group: Topical Conference: Nanomaterials for Applications in Energy and Biology
- Time: Monday, October 30, 2017 - 3:59pm-4:21pm
CdS and CdSe co-sensitized TiO2 assembled with urea electrocatalyst, Ni(OH)2, on fluorine-doped tin oxide (FTO) coated glass, has been employed as photoanode to realize simultaneous urea oxidation and water reduction under visible light irradiation. A Dielectric Barrier Layer (DBL) is employed to prevent the photocorrosion of the photoanodes by atomic layer deposition. The steady-state response of the photoelectrodes is investigated in a photoelectrochemical cell, and the charge transfer and recombination kinetics are measured using transient absorption spectroscopy to provide insight to the behavior of the photoanodes.