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题名: Study of dimension dependent diffusion coefficient of titanium dioxide nanoparticles
作者: Mishra, Shree ;  Gupta, Sanjeev K. ;  Jha, Prafulla K. ;  Pratap, Arun
刊名: MATERIALS CHEMISTRY AND PHYSICS
出版日期: 2010
卷号: 123, 期号:40942, 页码:791-794
关键词: NANOCRYSTALLINE MATERIALS ;  MELTING TEMPERATURE ;  SIZE ;  SHAPE ;  TIO2 ;  STABILITY ;  SENSOR
学科分类: Physics
通讯作者: Jha, PK , Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China
部门归属: [Mishra, S; Gupta, SK; Jha, PK] Bhavnagar Univ, Dept Phys, Bhavnagar 364022, Gujarat, India; [Mishra, S] Tolani FG Polytech, Adipur 370205, India; [Pratap, A] Maharaja Sayajirao Univ Baroda, Fac Engn & Technol, Dept Appl Phys, Vadodara 390001, India
英文摘要: In the present paper, we have studied size and dimension effect on diffusion coefficient of nitrogen and platinum doped TiO(2) nanoparticle using Arrhenius relation and Lindeman's criteria under their dynamic limit. The activation energy and melting point decreases with decrease in size. The TiO2 diffused with metal and nonmetal gives rise to (meta-) stable structure and mid-gap state helps to increase surface to volume ratio and quantum confinement effects, and results in the increase of diffusion coefficient. The calculated diffusion coefficient of undiffused TiO(2) with size is in good agreement with available experimental data. (C) 2010 Elsevier B.V. All rights reserved.
资助者: Department of Science and Technology, New Delhi; University Grants Commission, New Delhi
收录类别: SCI
原文出处: 查看原文
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5044
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Mishra, Shree,Gupta, Sanjeev K.,Jha, Prafulla K.,et al. Study of dimension dependent diffusion coefficient of titanium dioxide nanoparticles[J]. MATERIALS CHEMISTRY AND PHYSICS,2010,123(40942):791-794.
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