Structural and electronic properties of Ce(n)O(2n) (n=1-5) nanoparticles: A computational study

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题名:	Structural and electronic properties of Ce(n)O(2n) (n=1-5) nanoparticles: A computational study
作者:	Chen, HL (Chen, Hui-Lung) Weng, MH (Weng, Meng-Hsiung) Ju, SP (Ju, Shin-Pon) Chang, JG (Chang, Jee-Gong) Chen, HT (Chen, Hsin-Tsung) Chang, CS (Chang, Ching-Sheng)
贡献者:	機械系
关键词:	CeO(2) nanoparticle Electronic structure Density-functional theory Catalyst
日期:	2010-01
上传时间:	2011-12-15 13:36:48 (UTC+8)
摘要:	Understanding the electronic structures and properties of different size CeO(2) nanoparticles is very important for further application in the field of catalysis used in several promising materials. In this study, we have elucidated the electronic analyses of (CeO(2))(n) (n = 1-5) nanoparticles through first-principle density-functional theory approach. All structures with the global minimal energies are obtained by fire algorithm combining simulated annealing method and then are further re-optimized by DMol(3) program with double numerical atomic basis sets. Two useful analyzed methods (Fukui function and electronic density of state) are calculated to explain the chemical reactivity of different sites for (CeO(2))(n) (n = 1-5) nanoparticles. (C) 2009 Elsevier B.V. All rights reserved.
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