期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 815, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2019.152377
关键词
Photocathode; Photocatalysis; Methanol fuel cell; Fe2O3/NiO; Photoelectrochemistry
资金
- National Natural Science Foundation of China [21203082, 51773085]
- Natural Science Fund of Liaoning University [LDGY2019016]
A promising photocathode material based on Fe2O3/NiO heterostructure was developed for efficient photoelectric conversion in a methanol fuel cell. The Fe2O3/NiO heterogeneous film was prepared via insitu hydrothermal synthesis and then cathodic electrodeposition process. Surface photovoltage results showed that after electrodeposition of NiO on the Fe2O3 film, the separation direction of photogenerated electrons and holes was reversed. The photogenerated electrons accumulated on the surface of Fe2O3/NiO photocathode can induce the oxygen reduce reaction due to the relatively high conduction band level of the entire semiconductor composite. In addition, the Fe2O3/NiO based photocatalytic methanol fuel cell showed significant improvements under illumination of simulated sunlight, and the short-circuit current and open-circuit voltage reach 183 mu A/cm(2) and 0.48 V respectively. The work provided a new vision for solar - chemical energy conversion in the fuel cell. (C) 2019 Elsevier B.V. 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