中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Structure and Reducibility of NiO-MoO3/gamma-Al2O3 Catalysts: Effects of Loading and Molar Ratio

文献类型:期刊论文

作者Wang, Yuguang1; Xiong, Guang1; Liu, Xin1; Yu, Xiaochuan1; Liu, Liping1; Wang, Junying2; Feng, Zhaochi2; Li, Can2
刊名journal of physical chemistry c
出版日期2008-11-06
卷号112期号:44页码:17265-17271
英文摘要the effects of loading and molar ratio on the structure and reducibility of nio-moo3/gamma-al2o3 catalysts have been investigated. particular attention is given to the catalysts with excess of mo. the catalysts were prepared by impregnation method and characterized by raman spectroscopy, x-ray photoelectron spectroscopy (xps), x-ray diffraction (xrd), and temperature-programmed reduction techniques. results from raman, xps, and xrd show that different surface species can be formed depending on the loading and molar ratio. at low loading spinel-like nial2o4 and dispersed moo3 are the major species on gamma-al2o3, with increasing the loading the aggregation of the mo species occurs. only at high loading are crystalline beta-nimoo4 and moo3 formed on the surface. for the first time, excess mo was found to promote the formation of beta-nimoo4 on gamma-al2o3. the change in the structure of the catalysts has a large influence on their reducibility, suggesting that both the structure and oxidation-reduction properties of the nio-moo3/gamma-al2o3 catalysts can be controlled by varying the loading and molar ratio.
WOS标题词science & technology ; physical sciences ; technology
类目[WOS]chemistry, physical ; nanoscience & nanotechnology ; materials science, multidisciplinary
研究领域[WOS]chemistry ; science & technology - other topics ; materials science
关键词[WOS]selective oxidation catalysts ; molybdenum oxide catalysts ; nickel molybdate catalysts ; laser raman-spectroscopy ; mo-o system ; sol-gel ; c-4 hydrocarbons ; maleic-anhydride ; excess moo3 ; nimo/tio2-al2o3 catalysts
收录类别SCI
语种英语
WOS记录号WOS:000260533200038
公开日期2015-11-17
源URL[http://159.226.238.44/handle/321008/141112]  
专题大连化学物理研究所_中国科学院大连化学物理研究所
作者单位1.Dalian Univ Technol, Dept Catalysis Chem & Engn, State Key Lab Fine Chem, Dalian 116012, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
推荐引用方式
GB/T 7714
Wang, Yuguang,Xiong, Guang,Liu, Xin,et al. Structure and Reducibility of NiO-MoO3/gamma-Al2O3 Catalysts: Effects of Loading and Molar Ratio[J]. journal of physical chemistry c,2008,112(44):17265-17271.
APA Wang, Yuguang.,Xiong, Guang.,Liu, Xin.,Yu, Xiaochuan.,Liu, Liping.,...&Li, Can.(2008).Structure and Reducibility of NiO-MoO3/gamma-Al2O3 Catalysts: Effects of Loading and Molar Ratio.journal of physical chemistry c,112(44),17265-17271.
MLA Wang, Yuguang,et al."Structure and Reducibility of NiO-MoO3/gamma-Al2O3 Catalysts: Effects of Loading and Molar Ratio".journal of physical chemistry c 112.44(2008):17265-17271.

入库方式: OAI收割

来源:大连化学物理研究所

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