Приказ основних података о документу
Surface electrochemistry of CO on Pt(110)-(1x2) and Pt(110)-(1x1) surfaces
dc.creator | Marković, NM | |
dc.creator | Grgur, Branimir | |
dc.creator | Lucas, CA | |
dc.creator | Ross, PN | |
dc.date.accessioned | 2021-03-10T09:40:57Z | |
dc.date.available | 2021-03-10T09:40:57Z | |
dc.date.issued | 1997 | |
dc.identifier.issn | 0039-6028 | |
dc.identifier.uri | http://TechnoRep.tmf.bg.ac.rs/handle/123456789/130 | |
dc.description.abstract | A new type of flame-annealing method has been developed for the preparation of surfaces having either fcc(110)-(1x1) or fcc(110)-(1 x 2) symmetry. In situ X-ray scattering studies show that both the Pt(110)-(1 x 2) and Pt(110)-(1 x 1) surfaces are stable in the potential region between 0 and 1.0 V. Adsorption of CO on the (1 x 2) surface in solution does not induce the (1 x 2)-- gt (1 x 1) transition that is observed in UHV upon adsorption of CO. Nominally identical saturation coverages of hydrogen (H-upd) and COad are observed on the two surfaces, implying that two H-upd atoms or two COad molecules are adsorbed per unit cell of the reconstructed (1 x 2) surface. A significant increase in the interatomic spacing between the first and second layer of the reconstructed (1 x 2) surface occurs upon hydrogen adsorption to full coverage. Occupation of subsurface sites for H-upd are inferred from this result. The (1 x 2) surface is found to have a much higher catalytic activity for the electro-oxidation of CO; the anodic oxidation of either COad or dissolved COgas occurs at approximate to 0.3 V lower potential on the (1 x 2) than the (1 x 1) surface. | en |
dc.publisher | Elsevier Science Bv, Amsterdam | |
dc.rights | restrictedAccess | |
dc.source | Surface Science | |
dc.subject | electrochemical methods | en |
dc.subject | electro-oxidation of CO | en |
dc.subject | hydrogen adsorption | en |
dc.subject | low index single crystal surfaces | en |
dc.subject | surface structure | en |
dc.subject | X-ray scattering | en |
dc.title | Surface electrochemistry of CO on Pt(110)-(1x2) and Pt(110)-(1x1) surfaces | en |
dc.type | contributionToPeriodical | |
dc.rights.license | ARR | |
dc.citation.epage | L814 | |
dc.citation.issue | 1-3 | |
dc.citation.other | 384(1-3): L805-L814 | |
dc.citation.spage | L805 | |
dc.citation.volume | 384 | |
dc.identifier.doi | 10.1016/S0039-6028(97)00252-5 | |
dc.identifier.scopus | 2-s2.0-0031190358 | |
dc.identifier.wos | A1997XZ01500004 | |
dc.type.version | publishedVersion |