期刊
JOURNAL OF CATALYSIS
卷 387, 期 -, 页码 17-27出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcat.2020.04.001
关键词
Copper oxide; Copper bismuth oxide; Photocathode; Photocorrosion stability; Photoelectrochemical water splitting
资金
- Indian Institute of Technology, Hyderabad [SG/IITH/F148/2016-17/SG-6]
- Department of Materials Science and Metallurgical Engineering, at IIT Hyderabad
- Department of Chemistry and Chemical Engineering at IIT Hyderabad
Global energy crisis escalates the emphasis on ways to find green and sustainable solutions. Photoelectrochemical (PEC) conversion is one of the key technologies to fulfill the energy demand by converting solar energy into chemical fuels. Binary copper oxides suffer from severe photocorrosion and ternary copper oxides such as copper bismuth oxide (CuBi2O4) exhibit poor charge separation and transfer. In this work, a composite consisting of CuO annealed at 450 degrees C and CBO electrodeposited for 5 min on top of it (CuO-450/CBO-5) showed the best performance with a positive shift of 0.2 V in onset potential, a high current density of -0.9 mA cm(-2) at 0.1 V vs RHE and high stability over pure CuO. The systematic deposition of CBO on CuO leads to intimate contact between the two semiconductors wherein, CuO acts as a hole carrier and CBO accommodates the hydrogen evolution reaction (HER). (C) 2020 Elsevier Inc. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据