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High pressure phase transition of ZnO/SiO2 core/shell nanospheres
Cheng, BY; Li, QJ; Yao, MG; Liu, R; Li, DM; Zou, B; Cui, T; Liu, J; Chen, ZQ; Zhao, ZH; Yang, B; Liu, BB;刘景
2013
发表期刊JOURNAL OF APPLIED PHYSICS
卷号113期号:5页码:54314
摘要The structural phase transition of ZnO/SiO2 core/shell nanospheres was studied under high pressure using synchrotron X-ray diffraction. The results indicated that the wurtzite structure of the ZnO core is stable up to 11.5 GPa, and then transforms into rocksalt phase. The onset transition pressure is higher than those of the bulk and nano ZnO. It is worth noting that the phase transition from wurtzite to rocksalt is irreversible, which is obviously different from the uncapped bulk and nano ZnO. The pure rocksalt structure ZnO was first obtained at ambient conditions without catalyst or high temperature treatment. We suggested that the SiO2 shells play important roles in the phase transition of inner ZnO cores. The effects of the SiO2 shells on the phase transition of ZnO cores were discussed. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4790702]
学科领域Physics
DOI10.1063/1.4790702
收录类别SCI
WOS记录号WOS:000314746200077
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被引频次:2[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/311005/224564
专题多学科研究中心
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Cheng, BY,Li, QJ,Yao, MG,et al. High pressure phase transition of ZnO/SiO2 core/shell nanospheres[J]. JOURNAL OF APPLIED PHYSICS,2013,113(5):54314.
APA Cheng, BY.,Li, QJ.,Yao, MG.,Liu, R.,Li, DM.,...&Liu, BB;刘景.(2013).High pressure phase transition of ZnO/SiO2 core/shell nanospheres.JOURNAL OF APPLIED PHYSICS,113(5),54314.
MLA Cheng, BY,et al."High pressure phase transition of ZnO/SiO2 core/shell nanospheres".JOURNAL OF APPLIED PHYSICS 113.5(2013):54314.
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