Direct observation of subsurface oxygen on the defects of Pd(100)

	Direct observation of subsurface oxygen on the defects of Pd(100)
	Huang, WX; Zhai, RS; Bao, XH
刊名	surface science
	1999-09-20
卷号	439 期号:1-3 页码:l803-l807
关键词	electron emission measurements oxygen palladium surface defects work function measurements
英文摘要	oxygen adsorption and desorption on a pd(100) surface with a mesoscopic defect were studied by photoemission electron microscopy (peem). the defect surface, with an area of approximately 200 x 60 mu m(2), behaved differently from the perfect pd(100) surface towards the adsorption of oxygen. when saturated, both surface oxygen and subsurface oxygen coexisted on the defect surface, whereas only surface oxygen was present on the pd(100) surface. upon heating, subsurface oxygen diffused back to the surface and desorbed with surface oxygen at the same time. the difference in oxygen adsorption ability between the defect surface and the perfect pd(100) surface can be attributed to different structures of these two surfaces. (c) 1999 elsevier science b.v. all rights reserved.
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]	catalytic co oxidation ; o-2 ; surface ; rh(111) ; pt(100)
收录类别	SCI
原文出处	true
语种	英语
WOS记录号	WOS:000082718400006
公开日期	2010-11-30
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/86429]
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	Huang, WX,Zhai, RS,Bao, XH. Direct observation of subsurface oxygen on the defects of Pd(100)[J]. surface science,1999,439(1-3):l803-l807.
APA	Huang, WX,Zhai, RS,&Bao, XH.(1999).Direct observation of subsurface oxygen on the defects of Pd(100).surface science,439(1-3),l803-l807.
MLA	Huang, WX,et al."Direct observation of subsurface oxygen on the defects of Pd(100)".surface science 439.1-3(1999):l803-l807.