A Simplified Successive Ionic Layer Adsorption and Reaction (s-SILAR) Method for Growth of Porous BiVO4 Thin Films for Photoelectrochemical Water Oxidation

作者：Guo, Wenlong; Tang, Ding; Mabayoje, Oluwaniyi; Wygant, Bryan R.; Xiao, Peng; Zhang, Yunhuai^*; Mullins, C. Buddie^*

来源：Journal of the Electrochemical Society, 2017, 164(2): H119-H125.

DOI：10.1149/2.1321702jes

• BISMUTH VANADATE
• SOLAR-CELLS
• VISIBLE-LIGHT
• METAL-OXIDE
• PHOTOANODES
• DEPOSITION
• TRANSPORT
• PHOTOELECTROLYSIS
• ELECTROCATALYSTS
• RECOMBINATION

Since monoclinic bismuth vanadate (BiVO4) has been considered to be a promising anode material for photoelectrochemical (PEC) water splitting, the synthesis of high-quality BiVO4 photoanodes for use in PEC cells is beneficial. Here, we report a facile simplified successive ionic layer adsorption and reaction (s-SILAR) method to synthesize porous BiVO4 films. Evaluation of the porous BiVO4 film as a photoanode yielded photocurrents of similar to 0.70 and similar to 1.20 mA cm(-2) at 1.23 V vs RHE under AM1.5G irradiation for water and sulfite oxidation, respectively. After coupling with a cobalt-phosphate (Co-P-i) catalyst, its photocurrent for water oxidation increased to similar to 0.97 mA cm(-2) at 1.23 V vs RHE. The high performance of the resultant BiVO4 films and simplicity of operation make this s-SILAR technique a promising strategy to prepare BiVO4 photoanodes.

• 出版日期2017
• 单位重庆大学