High-Pressure Studies on CeO2 Nano-Octahedrons with a (111)-Terminated Surface
文献类型：期刊论文
| 作者 | Liu, B; Yao, MG; Liu, BB; Li, ZP ; Liu, R; Li, QJ; Li, DM; Zou, B; Cui, TA; Zou, GT
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| 刊名 | JOURNAL OF PHYSICAL CHEMISTRY C
 |
| 出版日期 | 2011 |
| 卷号 | 115期号:11页码:4546-4551 |
| 通讯作者 | [Liu, Bo ; Yao, Mingguang ; Liu, Bingbing ; Li, Zepeng ; Liu, Ran ; Li, Quanjun ; Li, Dongmei ; Zou, Bo ; Cui, Tian ; Zou, Guangtian] Jilin Univ, State Key Lab Superhard Mat, Changchun 130012, Peoples R China ; [Liu, Jing] Chinese Acad Sci, Inst High Energy Phys, Beijing 100023, Peoples R China ; [Chen, Zhiqiang] SUNY Stony Brook, Dept Geosci, Stony Brook, NY 11794 USA |
| 英文摘要 | In-situ high-pressure X-ray diffraction and Raman spectroscopies have been performed on well-shaped CeO2 nano-octahedrons enclosed by eight (111) planes. The CeO2 nano-octahedrons are shown to be more stable than their bulk counterparts and some other reported CeO2 nanocrystals of smaller size. The transition pressure from cubic to orthorhombic phase is approximately 10 GPa higher than that of 12 nm CeO2 nanocrystals even though they have similar volume expansion at ambient conditions. Additionally, the phase transition to alpha-PbCl2 phase is very sluggish and uncompleted even up to 55 GPa. The TEM image of the sample after decompression from 55 GPa clearly shows that the nano-octahedrons preserve the starting shape. Such distinct high-pressure behaviors in CeO2 nano-octahedrons have been discussed in terms of their special exposure surface. Further analysis shows that the lower compressibility of the exposed (111) planes in the nano-octahedrons is believed to be the major factor to the elevation of the phase transition pressure and the sluggishness of the transition. |
| 学科主题 | Chemistry; Science & Technology - Other Topics; Materials Science |
| 类目[WOS] | Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary |
| 研究领域[WOS] | Chemistry ; Science & Technology - Other Topics ; Materials Science |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000288401200026 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/239982]  |
| 专题 | 高能物理研究所_多学科研究中心 高能物理研究所_加速器中心 高能物理研究所_计算中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Liu, B,Yao, MG,Liu, BB,et al. High-Pressure Studies on CeO2 Nano-Octahedrons with a (111)-Terminated Surface[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2011,115(11):4546-4551. |
| APA | Liu, B.,Yao, MG.,Liu, BB.,Li, ZP.,Liu, R.,...&刘景.(2011).High-Pressure Studies on CeO2 Nano-Octahedrons with a (111)-Terminated Surface.JOURNAL OF PHYSICAL CHEMISTRY C,115(11),4546-4551. |
| MLA | Liu, B,et al."High-Pressure Studies on CeO2 Nano-Octahedrons with a (111)-Terminated Surface".JOURNAL OF PHYSICAL CHEMISTRY C 115.11(2011):4546-4551. |
入库方式： OAI收割
来源：高能物理研究所
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