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题名: Decomposition of NO2 on Pt(110): formation of a new oxygen adsorption state
作者: Huang, WX;  Jiang, ZQ;  Jiao, J;  Tan, DL;  Zhai, RS;  Bao, XH
关键词: oxygen ;  nitrogen oxides ;  platinum ;  x-ray photoelectron spectroscopy ;  thermal desorption
刊名: SURFACE SCIENCE
发表日期: 2002-05-20
卷: 506, 期:3, 页:L287-L292
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical ;  Physics, Condensed Matter
研究领域[WOS]: Chemistry ;  Physics
英文摘要: NO2 decomposition on Pt(1 1 0) was studied by XPS and TDS at various temperatures. At room temperature, NO, decomposes to adsorbed NO and oxygen adatoms on Pt(1 1 0). Strong repulsive interactions exist between the adsorbed NO and the oxygen adatoms. Above 450 K, NOads desorbs completely from the Pt(I 10) surface and only adsorbed oxygen is left on the surface. O-2 thermal desorption spectra results reveal that, comparing with oxygen adsorption on Pt(1 1 0), NO, exposure above 350 K gives rise to an additional oxygen adsorption state on Pt(l 10) that desorbs at a lower temperature. The new oxygen adsorption state has an O1s binding energy of 529.2 eV. The formation of the new oxygen adsorption state may be associated with the local phase transition of the Pt(l 10) surface from (I x 2) structure to (1 x 1) structure induced by the NOads that is formed from NO2 decomposition. () 2002 Published by Elsevie(C) Science B.V.
关键词[WOS]: NITROGEN-DIOXIDE ;  NITRIC-OXIDE ;  HIGH COVERAGES ;  ATOMIC OXYGEN ;  SURFACE ;  RH(111) ;  DESORPTION ;  O-2 ;  DISTRIBUTIONS ;  OXIDATION
语种: 英语
WOS记录号: WOS:000176089000003
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/139085
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.Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Huang, WX,Jiang, ZQ,Jiao, J,et al. Decomposition of NO2 on Pt(110): formation of a new oxygen adsorption state[J]. SURFACE SCIENCE,2002,506(3):L287-L292.
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