DOI: 10.5176/2251-1857_M318.18
Authors: Xin Yao, Danping Wang , Xin Zhao, Prince Saurabh Bassi, Zhong Chen, and Thirumany Sritharan
Abstract: The monoclinic scheelite BiVO4 is recognized as one of the promising candidate material for a photoanode because of its 9.1% theoretical assisted STH efficiency. While significant research effort has been devoted to improving the PEC performance of this material, they have mainly been in small anode areas with only a handful of studies on scaled-up sizes. Herein, a facile metal-organic decomposition synthesis method was used to produce scaled-up Mo-doped BiVO4 photoanodes. Multiple modifications were explored and incorporated to enhance the performance of the photoanode. A large area 5 cm × 5 cm photoanode was successfully prepared with all the modifications. The resulting photoanode gave a photocurrent density of 2.2 mA cm-2 at 1.23 V vs. RHE, under AM 1.5G illumination in a photoelectrochemical cell initially, and remained at 79% of this value after 1 h of operation.
Keywords: BiVO4, photoanode, scale-up
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