UV Raman spectroscopic study on the surface phase of ZrO2 modified with Nd2O3

	UV Raman spectroscopic study on the surface phase of ZrO2 modified with Nd2O3
	Zhang, Jing 1; Yan, Song 1; Yuan, Mengqiong 1; Wang, Xiang 2; Li, Can 2
刊名	materials letters
	2011-01-31
卷号	65 期号:2 页码:201-204
关键词	ZrO2 Surfaces UV Raman spectroscopy XRD Nd2O3 Characterization methods
ISSN号	待补充
通讯作者	jingzhang
产权排序	2,4
中文摘要	uv raman spectroscopic study on the surface phase of zro2 modified with nd2o3
英文摘要	the nd2o3 modified zro2 was synthesized using two methods of co-precipitation (nd-zro2) and wet impregnation (nd/zro2). the surface and bulk crystalline phases of nd2o3 modified zro2 were investigated by using uv raman spectroscopy, visible raman spectroscopy, and x-ray diffraction (xrd). it is observed that the tetragonal phase in the surface region of nd-zro2 was not effectively stabilized by nd2o3, as nd2o3 is mainly present in the bulk of nd-zro2. however, in nd/zro2, it is found that with the impregnation of 0.5 mol% nd2o3 on zro2, the surface tetragonal phase of nd/zro2 can be stabilized even after calcination at 700 degrees c. the uv raman results indicate that a disordered structure, or intermediate structure, which is involved in the transition from the tetragonal to the cubic phase, is formed at the surface region of nd/zro2. the formation of the aforementioned intermediate structure inhibits the phase transition from tetragonal to monoclinic in the surface region of nd/zro2. furthermore, it is observed that the mixed tetragonal and monoclinic phases in the surface region of zro2 which has been impregnated with nd2o3 can also be stabilized after calcination at 700 degrees c. this work provides a simple method for controlling the surface phase of zro2 at high temperatures. (c) 2010 elsevier b.v. all rights reserved.
学科主题	物理化学
WOS标题词	science & technology ; technology ; physical sciences
类目[WOS]	materials science, multidisciplinary ; physics, applied
研究领域[WOS]	materials science ; physics
关键词[WOS]	tetragonal zro2 ; zirconia ; transformation ; stabilization ; scattering ; stability ; ceramics ; region
收录类别	SCI
语种	英语
WOS记录号	WOS:000286158000018
公开日期	2012-07-09
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/115737]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Liaoning Shihua Univ, Sch Chem & Mat Sci, Fushun 113001, Liaoning, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Jing,Yan, Song,Yuan, Mengqiong,et al. UV Raman spectroscopic study on the surface phase of ZrO2 modified with Nd2O3[J]. materials letters,2011,65(2):201-204.
APA	Zhang, Jing,Yan, Song,Yuan, Mengqiong,Wang, Xiang,&Li, Can.(2011).UV Raman spectroscopic study on the surface phase of ZrO2 modified with Nd2O3.materials letters,65(2),201-204.
MLA	Zhang, Jing,et al."UV Raman spectroscopic study on the surface phase of ZrO2 modified with Nd2O3".materials letters 65.2(2011):201-204.