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题名: Adsorption and migration of hydrogen on different surface sites of gamma-Mo2N catalyst
作者: Zhang, YJ;  Li, YX;  Li, C;  Xin, Q;  Li, C;  Xin, Q
刊名: SPILLOVER AND MIGRATION OF SURFACE SPECIES ON CATALYSTS
发表日期: 1997
卷: 112, 页:457-464
收录类别: ISTP ;  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: Temperature programmed desorption (TPD) and temperature programmed adsorption (TPA) techniques were applied to study the mobility and migration of hydrogen species on high surface area Mo nitride catalyst. It was found that there are two kinds of adsorption sites on gamma-Mo2N one with low adsorption energy and the other with high adsorption energy respectively, and the catalyst shows a higher adsorption capacity at higher adsorption temperatures. TPD and TPA results revealed that hydrogen adsorption-desorption on gamma-Mo2N depends strongly on temperature. The adsorbed hydrogen species exhibits such high mobility that hydrogen species migrate from sites with low adsorption energy to sites with high adsorption energy. The TPD results show that the hydrogen species can migrate between different surface states to maintain a dynamic equilibrium.
关键词[WOS]: TRANSITION-METAL CARBIDES ;  MOLYBDENUM NITRIDE ;  SUPPORTED MOLYBDENUM ;  REACTION PATHWAYS ;  TUNGSTEN ;  HYDRODENITROGENATION ;  HYDRODESULFURIZATION ;  BEHAVIOR ;  OXYGEN ;  MO2N
语种: 英语
WOS记录号: WOS:000071952700051
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142806
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
2.Univ Liverpool, Dept Chem, Leverhulme Ctr Innovat Catalysis, Liverpool L69 3BX, Merseyside, England

Recommended Citation:
Zhang, YJ,Li, YX,Li, C,et al. Adsorption and migration of hydrogen on different surface sites of gamma-Mo2N catalyst[J]. SPILLOVER AND MIGRATION OF SURFACE SPECIES ON CATALYSTS,1997,112:457-464.
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