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Direct observation of subsurface oxygen on the defects of Pd(100)
Huang, WX; Zhai, RS; Bao, XH
关键词Electron Emission Measurements Oxygen Palladium Surface Defects Work Function Measurements
刊名SURFACE SCIENCE
1999-09-20
439期:1-3页:L803-L807
收录类别SCI
文章类型Letter
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)
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.
语种英语
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WOS记录号WOS:000082718400006
引用统计
被引频次:8[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/86429
专题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
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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.
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