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题名: Low-temperature isomerization of 1-butene on Mo2N/gamma-Al2O3 catalyst studied by in situ FT-IR spectroscopy
作者: Wu, ZL;  Li, C;  Ying, PL;  Wei, ZB;  Xin, Q
刊名: JOURNAL OF PHYSICAL CHEMISTRY B
发表日期: 2001-09-27
卷: 105, 期:38, 页:9183-9190
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: The adsorption and reaction of 1-butene on Mo2N/gamma -Al2O3 catalyst have been studied by in situ FT-IR spectroscopy at low temperatures, 145 K to room temperature (RT). The adsorbed 1-butene can be converted to cis- and trans-2-butenes below 201 K on Mo2N/gamma -Al2O3 catalyst. The result of coadsorption of 1-butene with CO indicates that 1-butene is mainly adsorbed on the surface Mo sites of the nitrided catalyst. No isomerization of adsorbed 1-butene and 2-butenes on reduced passivated Mo2N/gamma -Al2O3 sample below RT is observed. It is suggested that the double-bond migration (DBM) of 1-butene is mainly proceeded via an alkyl species on the surface cus Mo sites of Mo2N/gamma -Al2O3 catalyst. This resembles the behaviors of Group VIII metals in the isomerization of butenes. The incorporated nitrogen atoms are proposed to devote to both the valence state of surface Mo sites and the interaction between 1-butene and the nitrided catalyst. A possible path from 1-butene conversion to 2-butenes on Mo2N/gamma -Al2O3 catalyst is proposed.
关键词[WOS]: MOLYBDENA-ALUMINA CATALYSTS ;  TRANSITION-METAL CARBIDES ;  BUTENE ISOMERIZATION ;  ADSORPTION ;  NITRIDE ;  SURFACE ;  HYDRODESULFURIZATION ;  METATHESIS ;  MECHANISM ;  ETHYLENE
语种: 英语
WOS记录号: WOS:000171214200024
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/139036
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Wu, ZL,Li, C,Ying, PL,et al. Low-temperature isomerization of 1-butene on Mo2N/gamma-Al2O3 catalyst studied by in situ FT-IR spectroscopy[J]. JOURNAL OF PHYSICAL CHEMISTRY B,2001,105(38):9183-9190.
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