期刊
APPLIED CATALYSIS B-ENVIRONMENTAL
卷 275, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.apcatb.2020.119094
关键词
Photoelectrochemical cell; Water splitting; Pseudocapacitive; Tungsten oxide; Black phosphorus
资金
- Taishan Scholars Program [ts201712048]
- Case-by-Case Project for Top Outstanding Talents of Jinan
- project of 20 items of University of Jinan [2018GXRC001]
- National Natural Science Foundation of China [21874055, 51632003]
- 111 Project of International Corporation on Advanced Cement-based Materials [D17001]
Photoelectrochemical (PEC) cell, representing as one of the most promising candidates to implement solar-driven unassisted overall water splitting, still remains a bottleneck in the construction of technology strategies for efficient solar energy utilization due to the intermittent nature of sunlight. Herein, we demonstrate an approach to realize round-the-clock hydrogen production by a solar rechargeable tandem PEC cell with two photoactive electrodes, where the photoanode is composed of a pseudocapacitive WO3 nanoflakes film sensitized with visible-light responsive zeolitic-imidazolate-framework-67 (ZIF-67), and the photocathode is constituted with a Z-scheme BiVO4-black phosphorus (BP) heterojunctions that can broaden the light absorption to near-infrared (NIR) region as well as maintain the strong redox ability to fasten hydrogen evolution reactions by the effective charge separation. Deliberately, the alignment of Fermi level between the as-prepared WO3-ZIF-67 photoanode and BiVO4-BP photocathode permits us to realize a tandem PEC cell with reversible electron storage property, enabling light-induced charge storing and on-demand release in the dark, for the application of unassisted overall water splitting. The formed tandem PEC cell shows a promising strategy for the conversion of solar power into hydrogen fuel by integrating pseudocapacitive materials into man-made photovoltaic cells, and provides a new guidance for the design of multi-functional PEC device.
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