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Heat treatment influence on the structural properties of supported Ni nanoclusters
Rednic, V; Aldea, N; Marginean, P; Rada, M; Bot, A; Wu, ZH; Jing, Z; Matei, F;吴忠华; Zhang J(张静)
2014
发表期刊METALS AND MATERIALS INTERNATIONAL
卷号20期号:4页码:641-646
摘要Ni nanoclusters supported on Al2O3 were prepared using a coprecipitation method. A heat treatment at different temperatures was applied. The obtained samples were analyzed by X-ray diffraction (XRD), X-ray absorption spectroscopy and X-ray photoelectron spectroscopy in order to determine their global, local and electronic structures. The average particle size, the mean squares of the microstrain, the particle size and microstrain distribution functions of the supported Ni nanoclusters were determined by the XRD method using a generalized Fermi function for the approximation of the X-ray line. The recrystallization induced during the heat treatment process was analyzed. The present study indicated strong deformation of the local structure of the active metal in all of the samples investigated due to the metal-support interaction and the effects of the small particle size. Electronic structural investigations showed the presence of Ni in a metallic state as well as Ni2+ on the cluster surfaces.
关键词nanostructured materials chemical synthesis crystal structure recrystallization synchrotron radiation
学科领域Materials Science; Metallurgy & Metallurgical Engineering
DOI10.1007/s12540-014-4008-z
收录类别SCI
WOS记录号WOS:000339957700008
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被引频次:1[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/311005/225182
专题多学科研究中心
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Rednic, V,Aldea, N,Marginean, P,et al. Heat treatment influence on the structural properties of supported Ni nanoclusters[J]. METALS AND MATERIALS INTERNATIONAL,2014,20(4):641-646.
APA Rednic, V.,Aldea, N.,Marginean, P.,Rada, M.,Bot, A.,...&张静.(2014).Heat treatment influence on the structural properties of supported Ni nanoclusters.METALS AND MATERIALS INTERNATIONAL,20(4),641-646.
MLA Rednic, V,et al."Heat treatment influence on the structural properties of supported Ni nanoclusters".METALS AND MATERIALS INTERNATIONAL 20.4(2014):641-646.
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