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Dispersion and structure studies of molybdenum oxide on anatase TiO2
Zi, FL; Guo, HY; Wu, NZ; Xie, YN; Hu, TD; 谢亚宁,胡天斗
2004
发表期刊CHEMICAL RESEARCH IN CHINESE UNIVERSITIES
卷号20期号:6页码:685-689
通讯作者Beijing Univ Chem & Technol, Dept Appl Chem, Beijing 100029, Peoples R China ; Peking Univ, Inst Phys Chem, State Key Lab Struct Chem Unstable & Stable Speci, Beijing 100871, Peoples R China ; Inst High Energy Phys, Synchrotron Radiat Lab, Beijing 100039, Peoples R China
文章类型Article
摘要X-ray photoelectron spectroscopy (XPS) and extended X-ray absorption fine structure (EXAFS) were used to characterize the structure of the mixture of molybdenum oxide and anatase calcined at 723 K. The results indicate that molybdenum oxide can disperse onto the surface of anatase (TiO2) and the dispersion threshold is 11.2 mg in per gram of MoO3 or 4.8 Mo atoms/nm(2) TiO2. When the content of MoO3 is below the dispersion threshold, MoO3 species is in highly dispersed state interacting strongly with TiO2 support and in discrete tetrahedral coordination, [MoO4], on the surface of TiO2. When the MoO3 loading is above this value, MoO3 exists in both dispersed phase and crystalline phase. MoO3 in dispersed phase is still a discrete [MoO4] tetrahedron; MoO3 in crystal phase is in octahedral coordination.
关键词molybdenum trioxide anatase dispersion
学科领域Chemistry
研究领域[WOS]Chemistry ; Chemistry
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语种英语
研究领域[WOS]Chemistry ; Chemistry
WOS类目Chemistry, Multidisciplinary
WOS记录号WOS:000225813000003
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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/311005/238267
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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Zi, FL,Guo, HY,Wu, NZ,et al. Dispersion and structure studies of molybdenum oxide on anatase TiO2[J]. CHEMICAL RESEARCH IN CHINESE UNIVERSITIES,2004,20(6):685-689.
APA Zi, FL,Guo, HY,Wu, NZ,Xie, YN,Hu, TD,&谢亚宁,胡天斗.(2004).Dispersion and structure studies of molybdenum oxide on anatase TiO2.CHEMICAL RESEARCH IN CHINESE UNIVERSITIES,20(6),685-689.
MLA Zi, FL,et al."Dispersion and structure studies of molybdenum oxide on anatase TiO2".CHEMICAL RESEARCH IN CHINESE UNIVERSITIES 20.6(2004):685-689.
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