In Situ Oxidation Study of Pt(110) and Its Interaction with CO

Basit Öğe Kaydı
dc.authorid0000-0002-3087-8581
dc.authorid0000-0002-8973-6561
dc.contributor.authorButcher, Derek R.
dc.contributor.authorGrass, Michael E.
dc.contributor.authorZeng, Zhenhua
dc.contributor.authorAksoy, Funda
dc.contributor.authorBluhm, Hendrik
dc.contributor.authorLi, Wei-Xue
dc.contributor.authorLiu, Zhi
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2011
dc.departmentNiğde ÖHÜ
dc.description.abstractMany interesting structures have been observed for O(2)-exposed Pt(110). These structures, along with their stability and reactivity toward CO, provide insights into catalytic processes on open Pt surfaces, which have similarities to Pt nanoparticle catalysts. In this study, we present results from ambient-pressure X-ray photoelectron spectroscopy, high-pressure scanning tunneling microscopy, and density functional theory calculations. At low oxygen pressure, only chemisorbed oxygen is observed on the Pt(110) surface. At higher pressure (0.5 Torr of O(2)), nanometer-sized islands of multilayered alpha-PtO(2)-like surface oxide form along with chemisorbed oxygen. Both chemisorbed oxygen and the surface oxide are removed in the presence of CO, and the rate of disappearance of the surface oxide is dose to that of the chemisorbed oxygen at 270 K. The spectroscopic features of the surface oxide are similar to the oxide observed on Pt nanoparticles of a similar size, which provides us an extra incentive to revisit some single-crystal model catalyst surfaces under elevated pressure using in situ tools.
dc.description.sponsorshipOffice of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy [DE-AC02-05CH11231]; National Science Foundation of China [20873142, 20923001]; Ministry of Science and Technology of China [2007CB815205]; Korea Research Foundation (KRF); Korean government (MEST) [2009-0068720]; ALS
dc.description.sponsorshipThe Advanced Light Source is supported by the Director, Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. We thank Dr. Yimin Li for the fruitful discussion. W.-X.L. acknowledges financial support by the National Science Foundation of China (Nos. 20873142 and 20923001), the Ministry of Science and Technology of China (No. 2007CB815205). B.S.M. appreciates the support of the Korea Research Foundation (KRF) grant funded by the Korean government (MEST) (No. 2009-0068720). M.E.G. acknowledges the support of the ALS Postdoctoral Fellowship program.
dc.identifier.doi10.1021/ja207261s
dc.identifier.endpage20325
dc.identifier.issn0002-7863
dc.identifier.issue50
dc.identifier.pmid22070406
dc.identifier.scopus2-s2.0-83755162463
dc.identifier.scopusqualityQ1
dc.identifier.startpage20319
dc.identifier.urihttps://dx.doi.org/10.1021/ja207261s
dc.identifier.urihttps://hdl.handle.net/11480/4660
dc.identifier.volume133
dc.identifier.wosWOS:000298713600054
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.publisherAMER CHEMICAL SOC
dc.relation.ispartofJOURNAL OF THE AMERICAN CHEMICAL SOCIETY
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.titleIn Situ Oxidation Study of Pt(110) and Its Interaction with CO
dc.typeArticle

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