Small-angle X-ray scattering study on the microstructure evolution of zirconia nanoparticles during calcination
Liang, LP; Xu, Y; Hou, XL; Wu, D; Sun, YH; Li, ZH; Wu, ZH; Li ZH(李志宏); Wu ZH(吴忠华)
刊名JOURNAL OF SOLID STATE CHEMISTRY
2006
卷号179期号:4页码:959-967
关键词zirconia oxide nanoparticle small-angle X-ray scattering calcination
学科分类Chemistry
DOI10.1016/j.jssc.2005.12.002
通讯作者Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Peoples R China ; Taiyuan Univ Sci & Technol, Coll Mat Sci & Engn, Taiyuan 030024, Peoples R China ; Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China ; Chinese Acad Sci, Inst High Energy Phys, Natl Synchrotron Radiat Lab, Beijing 100039, Peoples R China
文章类型Article
英文摘要Zirconia nanoparticles have been synthesized from zirconium hydroxide precipitates followed by a supercritical CO2 extraction. The microstructure evolution of these zirconia nanoparticles during the calcination at the moderate temperature has been investigated. Assisted by the analyses of TEM and XRD, small-angle X-ray scattering (SAXS) Study offers possibilities to a comprehensive and quantitative characterization of the structural evolution Oil the nanometer scales. The as-synthesized zirconia sample exhibits a mass fractal structure constructed by the Surface fractal particles. Such a structure can be preserved LIP to 300 degrees C. After calcination at 400 degrees C, considerable structural rearrangement occurs. In the interior of nanoparticles zirconia nanocrystallites emerge. It is the scattering from such zirconia nanoparticles that give rise to the broadened crossover in the vs. In q plot and the scattering peak in the ln[q(3) J(q)] vs. q(2) plot. With a further increase in the calcination temperature, the power-law region at large-q in ln J(q) vs. ln q plot expands, and the peak in ln[q(3) J(q)] vs. q(2) plot shifts towards lower q values, indicating size increases in both the nanocrystallites and nanoparticles. Besides, the mass fractal structure constructed by zirconia nanoparticles can be largely preserved during the moderate temperature calcination. (c) 2005 Elsevier Inc. All rights reserved.
类目[WOS]Chemistry, Inorganic & Nuclear ; Chemistry, Physical
研究领域[WOS]Chemistry
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语种英语
WOS记录号WOS:000236501300001
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/238806
专题中国科学院高能物理研究所_多学科研究中心_期刊论文
作者单位中国科学院高能物理研究所
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Liang, LP,Xu, Y,Hou, XL,et al. Small-angle X-ray scattering study on the microstructure evolution of zirconia nanoparticles during calcination[J]. JOURNAL OF SOLID STATE CHEMISTRY,2006,179(4):959-967.
APA Liang, LP.,Xu, Y.,Hou, XL.,Wu, D.,Sun, YH.,...&吴忠华.(2006).Small-angle X-ray scattering study on the microstructure evolution of zirconia nanoparticles during calcination.JOURNAL OF SOLID STATE CHEMISTRY,179(4),959-967.
MLA Liang, LP,et al."Small-angle X-ray scattering study on the microstructure evolution of zirconia nanoparticles during calcination".JOURNAL OF SOLID STATE CHEMISTRY 179.4(2006):959-967.
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