期刊
COORDINATION CHEMISTRY REVIEWS
卷 256, 期 21-22, 页码 2521-2529出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.ccr.2012.06.017
关键词
Hematite; Solar fuels; Alternative energy
资金
- U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-SC0001059]
- U.S. Department of Energy Office of Science Laboratory [DE-AC02-06CH11357]
Iron(III)oxide in the form of hematite is, in many respects, an attractive material for the photocatalytic production of molecular oxygen from water. Especially over the past six years, several developments have advanced the performance of water oxidation cells based on this material. Nevertheless, the best versions of these photoelectrodes produce only about a fifth of the maximum photocurrent (and dioxygen) theoretically obtainable, while operating at photovoltages also well short of the theoretical maximum. Here we describe the factors limiting the performance of hematite as a photo-catalyst and outline approaches that have been, or might be, tried to overcome them. These factors include low hole mobility, bulk charge recombination, surface charge recombination, slow water oxidation kinetics, and poor light absorption. Whether hematite will soon become a practical photo-catalyst for water oxidation is uncertain. But, the schemes developed and the lessons learned will likely prove transferrable to other candidate photocatalyst materials. (C) 2012 Elsevier BM. 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