Raza W, Kerketta U, Hwang I, Schmuki P (2022)
Publication Type: Journal article
Publication year: 2022
Book Volume: 9
Journal Issue: 19
Single crystal anatase TiO2 nanosheets (TNS) were grown on a fluorine-doped tin oxide (FTO) substrate and then modified via multiple TiCl4 treatments to produce a hierarchical TiO2 structure. This high surface area hierarchical structure was then decorated with CdS (as a visible light absorber) using SILAR treatments. The resulting photoanodes provide a greatly enhanced photoelectrochemical H-2 generation capability. For the optimized TiO2 and CdS decorated TNS electrode, a photocurrent magnitude of 3.5mA/cm(2) at 0.5V Ag/AgCl (under AM 1.5G, 100mW/cm(2)) was obtained, and an applied bias to photoconversion efficiency (ABPE) of 2.5% could be reached. The increase in the specific surface was provided by the hierarchical TiO2 structure responsible for the improved performance in comparison to the plain, non-hierarchical electrode with an ABPE=0.8%. Even after particle decoration, the rapid electron flow through the single-crystalline scaffold was maintained. Consequently, the photoanode presented here best integrates in a synergistic manner, a larger surface area, a fast electron transport, and effective visible light harvesting properties.
APA:
Raza, W., Kerketta, U., Hwang, I., & Schmuki, P. (2022). CdS Decorated on Hierarchically Structured Single Crystal TiO2 Nanosheets for Enhanced Photoelectrochemical H-2 Generation. ChemElectroChem, 9(19). https://dx.doi.org/10.1002/celc.202200706
MLA:
Raza, Waseem, et al. "CdS Decorated on Hierarchically Structured Single Crystal TiO2 Nanosheets for Enhanced Photoelectrochemical H-2 Generation." ChemElectroChem 9.19 (2022).
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