普鲁士蓝
光电流
分解水
异质结
纳米棒
材料科学
热液循环
纳米材料
化学浴沉积
带隙
半导体
纳米技术
光电子学
化学工程
化学
光催化
电化学
电极
工程类
物理化学
生物化学
催化作用
作者
Haijun Wu,Qi Liu,Li Zhang,Yawen Tang,Gang Wang,Guobing Mao
出处
期刊:ACS applied energy materials
[American Chemical Society]
日期:2021-11-03
卷期号:4 (11): 12508-12514
被引量:10
标识
DOI:10.1021/acsaem.1c02317
摘要
A simple hydrothermal method has been developed to prepare a WO3 nanorod array@Prussian blue (WO3@PB) composite material on FTO substrates with core–shell heterogeneous structures, aiming to enhance the limited photoelectrochemical performance of semiconductor nanomaterials. Due to their enhanced absorption efficiency, faster electron transfer rate, and more appropriate gradient energy gap structure, the obtained composite materials display higher photocurrent density in comparison with pure WO3. A photocurrent density of 0.34 mA/cm2 at 1.23 V vs RHE was finally obtained over a WO3@PB photoanode with an electrochemical deposition time of 150 s, which is 0.8 and 33 times higher than those of pure WO3 and PB, respectively. Our work offers a promising photoelectrocatalyst for water decomposition applications and provides a way for the synthesis of environmentally friendly and low-cost photoanode materials.
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