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Effect of Grain Size on Pressure-Induced Structural Transition in Mn3O4
Lv, H; Yao, MG; Li, QJ; Li, ZP; Liu, B; Liu, R; Lu, SC; Li, DM; Mao, J; Ji, XL; Liu, J; Chen, ZQ; Zou, B; Cui, T; Liu, BB;刘景
2012
发表期刊JOURNAL OF PHYSICAL CHEMISTRY C
卷号116期号:SI3页码:2165-2171
摘要The size effect on structural transitions of Mn3O4 has been investigated under pressures by in situ synchrotron X-ray diffraction and Raman technique in a diamond anvil cell. Compared with bulk Mn3O4, Mn3O4 nanoparticles show an obvious elevation of phase transition pressure and different phase transformation routines with the occurrence of a new high-pressure phase at 14.5-23.5 GPa. The new phase most probably has an orthorhombic CaTi2O4-type structure, which is regarded as a metastable phase transforming to the higher pressure marokite-like structure. By the return to ambient pressure, the marokite phase is quenchable in bulk Mn3O4, whereas the coexistence of hausmannite and marokite phase is observed in the recovered Mn3O4 nanoparticles. It is proposed that the unique atomic conformation in Mn3O4 spinel structures, the cation distribution, and the higher surface energy together with the size-induced effect of nanocrystalline Mn3O4 probably play crucial roles in the high-pressure behavior of Mn3O4 nanoparticles.
学科领域Chemistry; Science & Technology - Other Topics; Materials Science
DOI10.1021/jp2067028
收录类别SCI
WOS记录号WOS:000299584400016
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被引频次:16[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/311005/224194
专题多学科研究中心
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Lv, H,Yao, MG,Li, QJ,et al. Effect of Grain Size on Pressure-Induced Structural Transition in Mn3O4[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2012,116(SI3):2165-2171.
APA Lv, H.,Yao, MG.,Li, QJ.,Li, ZP.,Liu, B.,...&Liu, BB;刘景.(2012).Effect of Grain Size on Pressure-Induced Structural Transition in Mn3O4.JOURNAL OF PHYSICAL CHEMISTRY C,116(SI3),2165-2171.
MLA Lv, H,et al."Effect of Grain Size on Pressure-Induced Structural Transition in Mn3O4".JOURNAL OF PHYSICAL CHEMISTRY C 116.SI3(2012):2165-2171.
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