Differential interplay between Ce and U on local structures of U1-xCexO2 solid solutions probed by X-ray absorption spectroscopy
文献类型：期刊论文
| 作者 | Cao, HJ; Bao, HL; Lin, X; Lin, J; Zhang, LJ; Huang, YY; Wang, JQ |
| 刊名 | JOURNAL OF NUCLEAR MATERIALS
 |
| 出版日期 | 2019 |
| 卷号 | 515期号:-页码:238—244 |
| 关键词 | MAGNETIC-SUSCEPTIBILITIES FISSION-PRODUCTS OXYGEN OXIDATION URANIUM UO2 DIOXIDE FUEL ENERGETICS DIFFUSION |
| ISSN号 | 0022-3115 |
| DOI | 10.1016/j.jnucmat.2018.12.042 |
| 文献子类 | 期刊论文 |
| 英文摘要 | Uranium-cerium mixed oxides U1-xCexO2 (x = 0.05, 0.20, 0.35, 0.50, 0.65, 0.80) were synthesized by co-precipitation method. The U1-xCexO2 samples were confirmed to be solid solutions with lattice parameters following Vegard's law by using X-ray diffraction technique combined with X-ray absorption spectroscopy. The effects of cerium content on the local structures of U and Ce in the U1-xCexO2 solid solutions were further studied by extended X-ray absorption fine structure (EXAFS) at the U L-3 edge and Ce K edge, respectively. Significantly, the local disorder degree around U and Ce in the U1-xCexO2 were found to be not equivalent. There is differential interplay between U and Ce on the local structures of the U1-xCexO2. The order degree in the local structure of U increases with the content of cerium when the Ce content is kept about 35% or more. In contrast, the disorder degree in the local structure of Ce increases with U content once uranium is added into CeO2. (C) 2019 Elsevier B.V. All rights reserved. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/31554]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cao, HJ,Bao, HL,Lin, X,et al. Differential interplay between Ce and U on local structures of U1-xCexO2 solid solutions probed by X-ray absorption spectroscopy[J]. JOURNAL OF NUCLEAR MATERIALS,2019,515(-):238—244. |
| APA | Cao, HJ.,Bao, HL.,Lin, X.,Lin, J.,Zhang, LJ.,...&Wang, JQ.(2019).Differential interplay between Ce and U on local structures of U1-xCexO2 solid solutions probed by X-ray absorption spectroscopy.JOURNAL OF NUCLEAR MATERIALS,515(-),238—244. |
| MLA | Cao, HJ,et al."Differential interplay between Ce and U on local structures of U1-xCexO2 solid solutions probed by X-ray absorption spectroscopy".JOURNAL OF NUCLEAR MATERIALS 515.-(2019):238—244. |
入库方式： OAI收割
来源：上海应用物理研究所
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