Study of high pressure structural stability of CeO2 nanoparticles
文献类型：期刊论文
| 作者 | Liu, B; Liu, R; Li, QJ; Yao, MG; Zou, B; Cui, T; Liu, BB; Liu, JL;刘景 |
| 刊名 | CHINESE PHYSICS C
 |
| 出版日期 | 2013 |
| 卷号 | 37期号:9页码:98003 |
| 关键词 | CeO2 nanomaterials high pressure experimental conditions grain size effect structural stability |
| 英文摘要 | In situ high pressure XRD diffraction and Raman spectroscopy have been performed on 12 nm CeO2 nanoparticles. Surprisingly, under quasihydrostatic conditions, 12 nm CeO2 nanoparticles maintain the fluorite-type structure in the whole pressure range (0-51 GPa) during the experiments, much more stable than the bulk counterpart (P-T similar to 31 GPa). In contrast, they experienced phase transition at pressure as low as 26 GPa under non-hydrostatic conditions (adopting CsCl as pressure medium). Additionally, 32-36 nm CeO2 nanoparticles exhibit an onset pressure of phase transition at 35 GPa under quasihydrostatic conditions, and this onset pressure is much lower than our result. Further analysis shows both the experimental condition (i.e., quasihydrostatic or non-hydrostatic) and grain size effect have a significant impact on the high pressure behaviors of CeO2 nanomaterials. |
| 学科主题 | Physics |
| 收录类别 | SCI |
| WOS记录号 | WOS:000323996000017 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/224763]  |
| 专题 | 高能物理研究所_多学科研究中心 |
| 推荐引用方式 GB/T 7714 | Liu, B,Liu, R,Li, QJ,et al. Study of high pressure structural stability of CeO2 nanoparticles[J]. CHINESE PHYSICS C,2013,37(9):98003. |
| APA | Liu, B.,Liu, R.,Li, QJ.,Yao, MG.,Zou, B.,...&Liu, JL；刘景.(2013).Study of high pressure structural stability of CeO2 nanoparticles.CHINESE PHYSICS C,37(9),98003. |
| MLA | Liu, B,et al."Study of high pressure structural stability of CeO2 nanoparticles".CHINESE PHYSICS C 37.9(2013):98003. |
入库方式： OAI收割
来源：高能物理研究所
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