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Study of monolayer dispersion of MoO3 on muscovite powder and diffusing behavior of MoO3 on muscovite wafer by SR-TXRF
Zhao, LY; Wang, XK; Wu, NZ; Huang, YY; He, W; Xie, YC; Huang YY(黄宇营); He W(何伟)
2003
发表期刊JOURNAL OF MATERIALS CHEMISTRY
卷号13期号:1页码:102-105
通讯作者Peking Univ, Inst Chem Phys, State Key Lab Struct Chem Unstable & Stable Speci, Beijing 100871, Peoples R China ; Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China
摘要The dispersion capacity of MoO3 on the surface of muscovite powder was studied by X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD) techniques. The results indicated that MoO3 can disperse onto the surface of a support as a sub-monolayer. The dispersion capacity was 5.88 mg MoO3 (g muscovite)(-1), or 3.24 Mo atoms nm(-2). The diffusing process of MoO3 on muscovite wafer was investigated by means of Synchrotron Radiation excited Total-reflection X-Ray Fluorescence spectroscopy (SR-TXRF). A stripe of MoO3 on the muscovite wafer was used as the diffusion source. After thermal treatment in air or dry N-2, MoO3 diffuses onto the surface of muscovite and forms a sub-monolayer. Sublimation of MoO3 was also detected during the diffusion process. The diffusion rate in two heating atmospheres differed significantly. The diffusion rate of MoO3 on muscovite in dry N-2 was greater than that in air. A possible explanation of the phenomena is that surface diffusion onto the muscovite surface plays a more important role in the process than transportation via gas phase during the diffusion of MoO3.
文章类型Article
学科领域Chemistry; Materials Science
研究领域[WOS]Chemistry ; Materials Science
DOI10.1039/b206445f
URL查看原文
语种英语
WOS类目Chemistry, Physical ; Materials Science, Multidisciplinary
WOS记录号WOS:000179753700019
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被引频次:4[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/311005/236817
专题多学科研究中心
作者单位中国科学院高能物理研究所
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Zhao, LY,Wang, XK,Wu, NZ,et al. Study of monolayer dispersion of MoO3 on muscovite powder and diffusing behavior of MoO3 on muscovite wafer by SR-TXRF[J]. JOURNAL OF MATERIALS CHEMISTRY,2003,13(1):102-105.
APA Zhao, LY.,Wang, XK.,Wu, NZ.,Huang, YY.,He, W.,...&何伟.(2003).Study of monolayer dispersion of MoO3 on muscovite powder and diffusing behavior of MoO3 on muscovite wafer by SR-TXRF.JOURNAL OF MATERIALS CHEMISTRY,13(1),102-105.
MLA Zhao, LY,et al."Study of monolayer dispersion of MoO3 on muscovite powder and diffusing behavior of MoO3 on muscovite wafer by SR-TXRF".JOURNAL OF MATERIALS CHEMISTRY 13.1(2003):102-105.
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