Facile preparation of BiVO4/FeVO4 heterostructure for efficient water-splitting applications

被引：33
|
作者：
Li, Ning [1 ]
Wu, Xiaofeng [1 ]
Wang, Meng [1 ]
Huang, Keke [1 ]
He, Jingjing [1 ]
Ma, Wei [1 ]
Chen, Huanwen [1 ]
Li, Yue [2 ]
Feng, Shouhua [1 ]
机构：
[1] Jilin Univ, Coll Chem, State Key Lab Inorgan Synth & Preparat Chem, Changchun 130012, Jilin, Peoples R China
[2] Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, 3888 Dong Nanhu Rd, Changchun 130033, Jilin, Peoples R China
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2019年 / 44卷 / 41期
基金：
中国国家自然科学基金;
关键词：
BiVO4/FeVO4; heterostructure; Electrospray technique; Photoelectrochemical water oxidation; PHOTOELECTROCHEMICAL PROPERTIES; BIVO4; PHOTOANODE; ARRAYS; FILMS;
D O I：
10.1016/j.ijhydene.2019.07.063
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
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.
引用
收藏
页码：23046 / 23053
页数：8
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