期刊
SCIENCE OF ADVANCED MATERIALS
卷 5, 期 2, 页码 155-159出版社
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/sam.2013.1441
关键词
SIC; Nanoparticle; Surface; Water; Hydrogen
资金
- National Natural Science Foundation of China [50972010, 51172025]
- Fundamental Research Funds for the Central Universities [FRF-TP-09-021B]
We report on the mechanism of water splitting to H-2 by silicon carbide nanoparticles through studying the grain surface evolution. It is elucidated that two different processes are actually involved in producing H-2, one being the photocatalytic reaction driven by SIC and the other one being a new pathway, that is, the direct chemical reaction between SIC and water. We show that H-2 can be detected even in dark by the latter process. Thin layers, consisting of silicon oxide or silicon oxycarbide, are found to form on the grain surface and retard further splitting to H-2 by photocatalysis. A possible reaction mechanism is put forward to understand the chemical behavior of SIC nanoparticles in water based on micro-structural analyses.
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