Effect of Grain Size on Pressure-Induced Structural Transition in Mn3O4

	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
刊名	journal of physical chemistry c
	2012
卷号	116 期号:3 页码:2165-2171
关键词	PHASE-TRANSITION MANGANESE OXIDES NANOCRYSTALS TRANSFORMATIONS SPECTROSCOPY CAMN2O4 CATION
ISSN号	1932-7447
通讯作者	liu bb
中文摘要	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.
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000299584400016
公开日期	2013-06-08
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/48371]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	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(3):2165-2171.
APA	Lv H.,Yao MG.,Li QJ.,Li ZP.,Liu B.,...&Liu BB.(2012).Effect of Grain Size on Pressure-Induced Structural Transition in Mn3O4.journal of physical chemistry c,116(3),2165-2171.
MLA	Lv H,et al."Effect of Grain Size on Pressure-Induced Structural Transition in Mn3O4".journal of physical chemistry c 116.3(2012):2165-2171.