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Dibenzothiophene hydrodesulfurization activity and surface sites of silica-supported MoP, Ni2P, and Ni-Mo-P catalysts
Sun, FX; Wu, WC; Wu, ZL; Guo, J; Wei, ZB; Yang, YX; Jiang, ZX; Tian, FP; Li, C
关键词Hydrodesulfurization Transition Metal Phosphides Mop Ni2p Nimop Dibenzothiophene Ir Spectroscopy Co Adsorption
刊名JOURNAL OF CATALYSIS
2004-12-10
DOI10.1016/j.jcat.2004.09.002
228期:2页:298-310
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Physical ; Engineering, Chemical
研究领域[WOS]Chemistry ; Engineering
关键词[WOS]TRANSITION-METAL PHOSPHIDES ; MAGNETIC-RESONANCE SPECTROSCOPY ; CARBON-MONOXIDE ; THIOPHENE HYDRODESULFURIZATION ; MOLYBDENUM PHOSPHIDE ; TUNGSTEN PHOSPHIDE ; PHOSPHORUS PROMOTION ; CO ADSORPTION ; NICKEL ; HYDRODENITROGENATION
英文摘要Silica-supported binary and ternary phosphides, MoP/SiO2, Ni2P/SiO2, and Ni-Mo-P/SiO2 have been prepared and characterized by X-ray diffraction (XRD), BET surface area, CO chemisorption, transmission electron microscopy (TEM), and infrared spectroscopy (IR). The hydrodesulfurization (HDS) activities of dibenzothiophene (DBT) were measured and compared at 593 K and 3.0 MPa for MoP/SiO2, Ni2P/SiO2, and Ni-Mo-P/SiO2 catalysts with different Mo and Ni loadings. The activities of the phosphides follow the order Ni2P/SiO2 > Ni-Mo-P/SiO2 > MOP/SiO2. The Ni sites in the Ni-MO-P/SiO2 catalysts play a major role in the conversion of DBT, and the activity of the catalysts increases with increasing Ni content. This is different from sulfides, nitrides, and carbides, as no synergetic effect is observed between the phosphided Ni and the Mo atoms. The surface of these phosphide catalysts is partially sulfided forming a surface phosphosulfide phase, while the bulk structure of the phosphides is maintained in the HDS reactions. (C) 2004 Elsevier Inc. All rights reserved.
语种英语
WOS记录号WOS:000225661200005
引用统计
被引频次:138[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/321008/139379
专题中国科学院大连化学物理研究所
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
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Sun, FX,Wu, WC,Wu, ZL,et al. Dibenzothiophene hydrodesulfurization activity and surface sites of silica-supported MoP, Ni2P, and Ni-Mo-P catalysts[J]. JOURNAL OF CATALYSIS,2004,228(2):298-310.
APA Sun, FX.,Wu, WC.,Wu, ZL.,Guo, J.,Wei, ZB.,...&Li, C.(2004).Dibenzothiophene hydrodesulfurization activity and surface sites of silica-supported MoP, Ni2P, and Ni-Mo-P catalysts.JOURNAL OF CATALYSIS,228(2),298-310.
MLA Sun, FX,et al."Dibenzothiophene hydrodesulfurization activity and surface sites of silica-supported MoP, Ni2P, and Ni-Mo-P catalysts".JOURNAL OF CATALYSIS 228.2(2004):298-310.
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