期刊
SOLID STATE COMMUNICATIONS
卷 119, 期 3, 页码 169-174出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0038-1098(01)00223-X
关键词
EXAFS; atom; X-ray absorption spectroscopy
The isothermal oxidation of MoO2 in oxygen (100%) at temperatures between 623 K and 823 K is studied by time-resolved in situ X-ray absorption spectroscopy. Four rate-determining steps (i.e. mass transport, boundary control, nuclei growth, and diffusion) dependent on temperature and the extent of reaction are found to govern the rapid oxidation of MoO2. The XANES and EXAFS results presented show that time-resolved XAFS studies can be used to investigate rapid solid-state reactions and to elucidate kinetics and structural evolution of the constituent phases. (C) 2001 Elsevier Science Ltd. 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