High pressure phase transition of ZnO/SiO2 core/shell nanospheres

	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
刊名	JOURNAL OF APPLIED PHYSICS
	2013
卷号	113 期号:5 页码:54314
英文摘要	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]
学科主题	Physics
收录类别	SCI
WOS记录号	WOS:000314746200077
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/224564]
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	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.