Synthesis of monodispersed La2Ce2O7 nanocrystals via hydrothermal method: A study of crystal growth and sintering behavior

	Synthesis of monodispersed La2Ce2O7 nanocrystals via hydrothermal method: A study of crystal growth and sintering behavior
	Wang CJ ; Huang WZ ; Wang Y ; Cheng YL ; Zou BL ; Fan XZ ; Yang JL ; Cao XQ
刊名	international journal of refractory metals & hard materials
	2012
卷号	31 页码:242-246
关键词	YTTRIA-STABILIZED ZIRCONIA CERIUM OXIDE NANOPARTICLES SIZE TEMPERATURE ZRO2 TRANSFORMATION COALESCENCE NANOPOWDERS POWDER
ISSN号	0263-4368
通讯作者	cao xq
中文摘要	monodispersed and uniformly distributed la2ce2o7 nanocrystals were synthesized via the hydrothermal method using polyethyleneglycol (peg) as surfactant. x-ray diffraction (xrd), thermogravimetric analysis/differential scanning calorimeter (tg/dsc), fourier transform infrared spectroscopy (ft-ir), raman spectroscopy and high resolution transmission electron microscopy (hrtem) were utilized to characterize the thermal decomposition, phase structure and morphology of the products. qualitative analysis indicates that the products are comprised of well-dispersed square particles with cubic fluorite structure. the specific surface area and the average crystallite size of the as-prepared products are 195.59 m(2) g(-1) and 10-15 nm, respectively. the low effective activation energy (15.27 +/- 0.03 kj mol(-1)) for crystal growth was obtained in the calcination temperature range of 700-1300 degrees c. the sintering behavior of the compacted body was also investigated, revealing that la2ce2o7 has a low relative density and open channel morphology. (c) 2011 elsevier ltd. all rights reserved.
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000301027800038
公开日期	2013-06-08
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/48298]
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	Wang CJ,Huang WZ,Wang Y,et al. Synthesis of monodispersed La2Ce2O7 nanocrystals via hydrothermal method: A study of crystal growth and sintering behavior[J]. international journal of refractory metals & hard materials,2012,31:242-246.
APA	Wang CJ.,Huang WZ.,Wang Y.,Cheng YL.,Zou BL.,...&Cao XQ.(2012).Synthesis of monodispersed La2Ce2O7 nanocrystals via hydrothermal method: A study of crystal growth and sintering behavior.international journal of refractory metals & hard materials,31,242-246.
MLA	Wang CJ,et al."Synthesis of monodispersed La2Ce2O7 nanocrystals via hydrothermal method: A study of crystal growth and sintering behavior".international journal of refractory metals & hard materials 31(2012):242-246.