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Microcalorimetric and IR spectroscopic studies of CO adsorption on molybdenum nitride catalysts
Wu, ZL; Maroto-Valiente, A; Guerrero-Ruiz, A; Rodriguez-Ramos, I; Li, C; Xin, Q
刊名PHYSICAL CHEMISTRY CHEMICAL PHYSICS
2003
DOI10.1039/b300634d
5期:8页:1703-1707
收录类别SCI
文章类型Article
部门归属503
项目归属503
产权排名2;1
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Physical ; Physics, Atomic, Molecular & Chemical
研究领域[WOS]Chemistry ; Physics
关键词[WOS]MO2N/GAMMA-AL2O3 CATALYST ; SURFACE SITES ; ALUMINA ; HYDRODESULFURIZATION ; ZIRCONIA ; 1-BUTENE ; TITANIA ; CARBON
英文摘要The adsorption of CO on both nitrided and reduced passivated Mo(2)N catalysts in either alumina supported or unsupported forms was studied by adsorption microcalorimetry and infrared (IR) spectroscopy. The CO is adsorbed on nitrided Mo(2)N catalysts on three different surface sites: 4-fold vacancies, Mo(delta+) ( 0 < delta < 2) and N sites, with differential heats of CO adsorption decreasing in the same order. The presence of the alumina-support affects the energetic distribution of the adsorption sites on the nitrided Mo(2)N, i.e. weakens the CO adsorption strength on the different sites and changes the fraction of sites adsorbing CO in a specific form, revealing that the alumina supported Mo(2)N phase shows lower electron density than pure Mo(2)N. On reduced passivated Mo(2)N catalysts the CO was found to adsorb mainly on Mo(4+) sites, although some slightly different surface Mo(delta+) d (0 < delta < 2) sites are also detected. The nature, density and distribution of surface sites of reduced passivated Mo(2)N/gAl(2)O(3) were similar to those on reduced MoO(3)/gamma-Al(2)O(3).
语种英语
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WOS记录号WOS:000181919000032
引用统计
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://cas-ir.dicp.ac.cn/handle/321008/82939
专题中国科学院大连化学物理研究所
作者单位1.Univ Nacl Educ Distancia, Fac Ciencias, Dpto Inorgan & Tecn, Madrid, Spain
2.CSIC, Inst Catalisis & Petr Quim, Madrid 28049, Spain
3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
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Wu, ZL,Maroto-Valiente, A,Guerrero-Ruiz, A,et al. Microcalorimetric and IR spectroscopic studies of CO adsorption on molybdenum nitride catalysts[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2003,5(8):1703-1707.
APA Wu, ZL,Maroto-Valiente, A,Guerrero-Ruiz, A,Rodriguez-Ramos, I,Li, C,&Xin, Q.(2003).Microcalorimetric and IR spectroscopic studies of CO adsorption on molybdenum nitride catalysts.PHYSICAL CHEMISTRY CHEMICAL PHYSICS,5(8),1703-1707.
MLA Wu, ZL,et al."Microcalorimetric and IR spectroscopic studies of CO adsorption on molybdenum nitride catalysts".PHYSICAL CHEMISTRY CHEMICAL PHYSICS 5.8(2003):1703-1707.
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