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Synthesis and phase transition under ultra-high pressure of ZnS nanoparticles modified by sodium bis(2-ethylhexyl) sulfosuccinate
Ji, YL; Guo, L; Xu, HB; Liu, J; Li, XD; Li, YC; Wu, ZY; Simon, P; Liu J(刘景); Li XD(李晓东); Li YC(李延春); Wu ZY(吴自玉)
2003
发表期刊PHYSICA STATUS SOLIDI A-APPLIED RESEARCH
卷号198期号:1页码:#REF!
通讯作者Guo, L (reprint author), Beijing Univ Aeronaut & Astronaut, Sch Mat Sci & Engn, Beijing 100083, Peoples R China.
文章类型Article
摘要ZnS nanoparticles modified by AOT with different particle sizes (5 nm and 13 nm) were prepared in reverse micelles. The products show the zinc-blende (B3) structure at atmospheric pressure, and the B3 structure was proved to exist at smaller size dimensions than the B4 structure. The pressure-induced phase transition to the rock salt (B1) phase was studied by in situ high-pressure energy-dispersive X-ray diffraction experiments. The transition began at a pressure of around 15.4 GPa for the 5 nm sample and at 16 GPa for the 13 nm sample. It is indicated that the transition pressure is not obviously dependent on the grain size of the nano-crystals in our experiments. From the small transition pressure gap between the two different sizes it can be deduced that the transition pressure goes to the same value below a certain particle size. This feature could be caused by the crystal lattice contraction due to the strong surface pressure. Our results imply, that the new high-pressure phase is metastable and cannot exist in ordinary circumstances.
学科领域Materials Science; Physics
DOI10.1002/pssa.200306450
收录类别SCI
WOS类目Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS记录号WOS:000184662900028
引用统计
被引频次:6[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/311005/226961
专题多学科研究中心
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Ji, YL,Guo, L,Xu, HB,et al. Synthesis and phase transition under ultra-high pressure of ZnS nanoparticles modified by sodium bis(2-ethylhexyl) sulfosuccinate[J]. PHYSICA STATUS SOLIDI A-APPLIED RESEARCH,2003,198(1):#REF!.
APA Ji, YL.,Guo, L.,Xu, HB.,Liu, J.,Li, XD.,...&吴自玉.(2003).Synthesis and phase transition under ultra-high pressure of ZnS nanoparticles modified by sodium bis(2-ethylhexyl) sulfosuccinate.PHYSICA STATUS SOLIDI A-APPLIED RESEARCH,198(1),#REF!.
MLA Ji, YL,et al."Synthesis and phase transition under ultra-high pressure of ZnS nanoparticles modified by sodium bis(2-ethylhexyl) sulfosuccinate".PHYSICA STATUS SOLIDI A-APPLIED RESEARCH 198.1(2003):#REF!.
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