Comparative XPS study of surface reduction for nanocrystalline and microcrystalline ceria powder
文献类型：期刊论文
| 作者 | Qiu, LM; Liu, F; Zhao, LZ; Ma, Y; Yao, JN |
| 刊名 | APPLIED SURFACE SCIENCE
 |
| 出版日期 | 2006-05-15 |
| 卷号 | 252期号:14页码:4931-4935 |
| 关键词 | Nanocrystalline Ceria Microcrystalline Ceria Xps Surface Reduction Oxygen Vacancy Oxygen Diffusion |
| ISSN号 | 0169-4332 |
| DOI | 10.1016/j.apsusc.2005.07.024 |
| 英文摘要 | Nanoscale materials have attracted great interest because of their distinct properties. By means of XPS, the present work investigated the difference of reduction behavior between nanocrystalline and microcrystalline ceria on condition of Ar+ bombardment or X-ray irradiation. For the first time, the results indicate that the reduction level of Ce4+ to Ce3+ is lower for nanocrystalline ceria than for microcrystalline ceria although the experimental conditions are identical. These differences have been attributed to the differences in the concentration of oxygen vacancies in the bulk and the diffusion ability of oxygen atoms between them. Besides, the key factor for the reduction of ceria produced by X-ray exposure is discussed. (c) 2005 Elsevier B.V. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000238168000002 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/58965]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Liu, F |
| 作者单位 | Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qiu, LM,Liu, F,Zhao, LZ,et al. Comparative XPS study of surface reduction for nanocrystalline and microcrystalline ceria powder[J]. APPLIED SURFACE SCIENCE,2006,252(14):4931-4935. |
| APA | Qiu, LM,Liu, F,Zhao, LZ,Ma, Y,&Yao, JN.(2006).Comparative XPS study of surface reduction for nanocrystalline and microcrystalline ceria powder.APPLIED SURFACE SCIENCE,252(14),4931-4935. |
| MLA | Qiu, LM,et al."Comparative XPS study of surface reduction for nanocrystalline and microcrystalline ceria powder".APPLIED SURFACE SCIENCE 252.14(2006):4931-4935. |
入库方式： OAI收割
来源：化学研究所
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