Sulfur effect on Mo2N/gamma-Al2O3 catalyst studied by in situ FT-IR spectroscopy

	Sulfur effect on Mo2N/gamma-Al2O3 catalyst studied by in situ FT-IR spectroscopy
	Wu, ZL; Chu, YJ; Yang, SW; Wei, ZB; Li, C; Xin, Q
刊名	journal of catalysis
	2000-08-15
卷号	194 期号:1 页码:23-32
关键词	molybdenum nitride thiophene H2S FT-IR spectroscopy CO adsorption sulfur effect hydrodesulfurization
英文摘要	the sulfur effect of both thiophene and h2s on mo2n/gamma-al2o3 catalyst has been characterized by in situ ft-ir spectroscopy. co adsorption was used to probe the effect of thiophene and h2s on the surface of the mo2n/gamma-al2o3 catalyst. the adsorbed thiophene has strong electronic interaction with the moznly-al2o3 catalyst and does not sulfide the surface of the catalyst at temperatures below 673 k, while in the presence of h-2, the surface of the mo2n/gamma -al2o3 catalyst can be partially sulfided by thiophene at temperatures as low as 373 k, simultaneously the adsorbed thiophene is decomposed or hydrodesulfurized on the catalyst. h2s has stronger interaction with the mo2n/gamma-al2o3 catalyst than thiophene does and can slightly sulfide the catalyst surface even at room temperature. the catalyst surface is deeply sulfided by an h2s/h-2 mixture at temperatures even about 373 k. the surface of the sulfided nitride catalyst can be only partially regenerated by a renitridation using nh3 at 873 k, indicating that some formation of sulfur species on the nitrided catalyst is irreversible. however, the nitrided surface can be completely regenerated when the catalyst is first oxidized and then renitrided, the sulfur effect on a reduced passivated moznly-al2o3 catalyst was also investigated. (c) 2000 academic press.
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]	supported molybdenum nitride ; transition-metal carbides ; thiophene hydrodesulfurization ; hydrodenitrogenation catalysts ; surface ; gamma-mo2n ; reactivity ; mo2n ; dibenzothiophene ; benzothiophene
收录类别	SCI
语种	英语
WOS记录号	WOS:000088947800004
公开日期	2015-11-10
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/138778]
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	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	Wu, ZL,Chu, YJ,Yang, SW,et al. Sulfur effect on Mo2N/gamma-Al2O3 catalyst studied by in situ FT-IR spectroscopy[J]. journal of catalysis,2000,194(1):23-32.
APA	Wu, ZL,Chu, YJ,Yang, SW,Wei, ZB,Li, C,&Xin, Q.(2000).Sulfur effect on Mo2N/gamma-Al2O3 catalyst studied by in situ FT-IR spectroscopy.journal of catalysis,194(1),23-32.
MLA	Wu, ZL,et al."Sulfur effect on Mo2N/gamma-Al2O3 catalyst studied by in situ FT-IR spectroscopy".journal of catalysis 194.1(2000):23-32.