Facile preparation of BiVO4/FeVO4 heterostructure for efficient water-splitting applications
Facile preparation of BiVO4/FeVO4 heterostructure for efficient water-splitting applications
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DOI：
10.1016/j.ijhydene.2019.07.063
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发表时间：
2019-08-30
影响因子：
7.2
通讯作者：
Feng, Shouhua
中科院分区：
文献类型：
--
作者：
Li, Ning;Wu, Xiaofeng;Feng, Shouhua
本文采用电喷雾技术合成了BiVO4/FeVO4异质结构光阳极，并研究了其光电化学水氧化性能。 1.23 V-RHE下的最大光电流密度为0.4 mA cm(-2)，是原始BiVO4薄膜(0.06 mA cm(-2))的6倍。通过电化学阻抗谱（EIS）结果分析，光电化学性能的提高可归因于两相界面异质结构的形成，从而导致电子-空穴对的有效分离。这项工作为构建半导体纳米复合材料以实现高效光电化学水氧化提供了一种新的有效策略。 (C) 2019 氢能源出版物有限责任公司。由爱思唯尔有限公司出版。保留所有权利。
In this paper, a BiVO4/FeVO4 heterostructure photoanode was synthesized by electrospray technique, and its photoelectrochemical water oxidation performance was investigated. The maximum photocurrent density of 0.4 mA cm(-2) at 1.23 V-RHE was 6 times higher than that of pristine BiVO4 films (0.06 mA cm(-2)). Through the analysis of the electrochemical impedance spectroscopy (EIS) results, the improvement of photoelectrochemical performance could be attributed to the formation of heterostructure at the two-phase interface, which led to the effective separation of electron-hole pairs. This work offers a new effective strategy to construct semiconductor nanocomposites for efficient photoelectrochemical water oxidation. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.