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Study of high pressure structural stability of CeO2 nanoparticles
Liu, B; Liu, R; Li, QJ; Yao, MG; Zou, B; Cui, T; Liu, BB; Liu, JL;刘景
2013
发表期刊CHINESE PHYSICS C
卷号37期号:9页码:98003
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.
关键词CeO2 nanomaterials high pressure experimental conditions grain size effect structural stability
学科领域Physics
DOI10.1088/1674-1137/37/9/098003
收录类别SCI
WOS记录号WOS:000323996000017
引用统计
被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/224763
专题多学科研究中心
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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.
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