Surface species and the stability of gamma-Mo2N

	Surface species and the stability of gamma-Mo2N
	Wei, ZB ; Xin, Q ; Grange, P ; Delmon, B
刊名	solid state ionics
	1997-11-01
卷号	101 页码:761-767
关键词	molybdenum nitride surface species stability TPD-MS XRD XPS
英文摘要	the surface species of passivated and nonpassivated mo2n end their stability at elevated temperature in various environments have been investigated by thermal programmed desorption with mass spectrometry (tpd-ms), x-ray diffraction (xrd) and x-ray photoelectron spectroscopy (xps). the results demonstrate that two types of nhx and h species remain on fresh mo2n, and a small amount of weakly adsorbed nhx species is present on passivated mo2n. during heating at 1000 degrees c in he, fresh mo2n transforms first from gamma-mo2n to beta-mo2n and then decomposes to metallic mo. no obvious change of the crystalline phase occurs for passivated mo2n before its decomposition or reduction. the xrd spectra showed a high stability of the mo2n bulk structure against sulphidation. xps data indicated that some changes of the surface composition occurred in sulphided mo2n. oxygen incorporated during passivation reacted with sulphur and formed a thin layer molybdenum of sulphide covering the nitride surface.
WOS标题词	science & technology ; physical sciences
类目[WOS]	chemistry, physical ; physics, condensed matter
研究领域[WOS]	chemistry ; physics
关键词[WOS]	transition-metal carbides ; molybdenum nitride ; nmr-spectroscopy ; hydrodenitrogenation ; hydrodesulfurization ; hydrogenation ; catalysis ; quinoline ; tungsten ; mo2n
收录类别	ISTP ; SCI
语种	英语
WOS记录号	WOS:000071198600017
公开日期	2015-11-17
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/142815]
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	1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China 2.Catholic Univ Louvain, Unite Catalyse & Chim Mat Divises, B-1348 Louvain, Belgium
推荐引用方式 GB/T 7714	Wei, ZB,Xin, Q,Grange, P,et al. Surface species and the stability of gamma-Mo2N[J]. solid state ionics,1997,101:761-767.
APA	Wei, ZB,Xin, Q,Grange, P,&Delmon, B.(1997).Surface species and the stability of gamma-Mo2N.solid state ionics,101,761-767.
MLA	Wei, ZB,et al."Surface species and the stability of gamma-Mo2N".solid state ionics 101(1997):761-767.