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Active carbon supported Mo-K catalysts used for alcohol synthesis
Li, ZR; Fu, YL; Jiang, M; Hu, TD; Liu, T; Xie, YN; Hu TD(胡天斗); Liu T(刘涛); Xie YN(谢亚宁)
2001
发表期刊JOURNAL OF CATALYSIS
卷号199期号:2页码:#REF!
通讯作者Fu, YL (reprint author), Univ Sci & Technol China, Dept Chem Phys, Hefei 230026, Peoples R China.
文章类型Article
摘要The structure of oxidic and sulfided Mo catalysts supported on activated carbon was studied by means of X-ray diffraction (XRD), laser Raman spectroscopy (LRS), and extended X-ray absorption fine structure (EXAFS), The activity for mixed alcohol synthesis was also investigated. In oxidic state, the Mo phase on the sample with low Mo loading is mainly present as MoO2, due to the migration of the potassium anions into micropores of activated carbon and the reducing nature of activated carbon at a high preparation temperature. As the Mo loading increases, the interaction between potassium and molybdenum is enhanced. At the MoO3 loading of 72 wt%, Mo mainly exists in the form of K2Mo2O7 species. After sulfidation, the OS substitution takes place; the Mo sulfide phase is highly dispersed as tiny three-dimensional particles at higher loading. Indeed, the results of XRD, LRS, and EXAFS demonstrate that MoS2 is the major phase present after sulfidation, The higher catalytic activity for Mo-K/AC compared to Mo-K/Al2O3 is explained by the difference in the structure of sulfide phase and in the interaction between these phases and the respective supports. (C) 2001 Academic Press
关键词molybdenum-based catalysis activated carbon support alcohol synthesis structure
学科领域Chemistry; Engineering
DOI10.1006/jcat.2001.3172
收录类别SCI
WOS类目Chemistry, Physical ; Engineering, Chemical
WOS记录号WOS:000168437800001
引用统计
被引频次:43[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/311005/226550
专题多学科研究中心
推荐引用方式
GB/T 7714
Li, ZR,Fu, YL,Jiang, M,et al. Active carbon supported Mo-K catalysts used for alcohol synthesis[J]. JOURNAL OF CATALYSIS,2001,199(2):#REF!.
APA Li, ZR.,Fu, YL.,Jiang, M.,Hu, TD.,Liu, T.,...&谢亚宁.(2001).Active carbon supported Mo-K catalysts used for alcohol synthesis.JOURNAL OF CATALYSIS,199(2),#REF!.
MLA Li, ZR,et al."Active carbon supported Mo-K catalysts used for alcohol synthesis".JOURNAL OF CATALYSIS 199.2(2001):#REF!.
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