Understanding the Role of Electronic Effects in CO on the Pt-Sn Alloy Surface via Band Structure Measurements

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dc.contributor.authorJung, Jongkeun
dc.contributor.authorKang, Sungwoo
dc.contributor.authorNicolai, Laurent Christophe
dc.contributor.authorHong, Jisook
dc.contributor.authorMinár, Jan
dc.contributor.authorSong, Inkyung
dc.contributor.authorKyung, Wonshik
dc.contributor.authorCho, Soohyun
dc.contributor.authorKim, Beomseo
dc.contributor.authorDenlinger, Jonathan D.
dc.contributor.authorCadete Santos Aires, Francisco José
dc.contributor.authorEhret, Eric
dc.contributor.authorRoss, Philip
dc.contributor.authorShim, Jihoon
dc.contributor.authorNemšák, Slavomir
dc.contributor.authorNoh, Doyoung
dc.contributor.authorHan, Seungwu
dc.contributor.authorKim, Changyoung
dc.contributor.authorMun, Bongjin Simon
dc.date.accessioned2023-02-06T11:00:17Z
dc.date.available2023-02-06T11:00:17Z
dc.date.issued2022
dc.description.abstract-translatedUsing angle-resolved photoemission spectroscopy, we show direct evidence for charge transfer between adsorbed molecules and metal substrates, i.e., chemisorption of CO on Pt(111) and Pt-Sn/Pt(111) 2 x 2 surfaces. The observed band structures show a unique signature of charge transfer as CO atoms are adsorbed, revealing the roles of specific orbital characters participating in the chemisorption process. As the coverage of CO increases, the degree of charge transfer between CO and Pt shows a clear difference to that of Pt-Sn. With comparison to density functional theory calculation results, the observed distinct features in the band structure are interpreted as back-donation bonding states formed between the Pt molecular orbital and the 2 pi orbital of CO. Furthermore, the change in the surface charge concentration, measured from the Fermi surface area, shows that the Pt surface has a larger charge concentration change than the Pt-Sn surface upon CO adsorption. The differences between Pt and Pt-Sn surfaces are due to the effect of Pt-Sn intermetallic bonding on the interaction of CO with the surface.en
dc.format7 s.cs
dc.format.mimetypeapplication/pdf
dc.identifier.citationJUNG, J. KANG, S. NICOLAI, LCH. HONG, J. MINÁR, J. SONG, I. KYUNG, W. CHO, S. KIM, B. DENLINGER, JD. CADETE SANTOS AIRES, FJ. EHRET, E. ROSS, P. SHIM, J. NEMŠÁK, S. NOH, D. HAN, S. KIM, CH. MUN, BS. Understanding the Role of Electronic Effects in CO on the Pt-Sn Alloy Surface via Band Structure Measurements. ACS Catalysis, 2022, roč. 12, č. 1, s. 219-225. ISSN: 2155-5435cs
dc.identifier.document-number732449500001
dc.identifier.doi10.1021/acscatal.1c04566
dc.identifier.issn2155-5435
dc.identifier.obd43935073
dc.identifier.uri2-s2.0-85121656162
dc.identifier.urihttp://hdl.handle.net/11025/51288
dc.language.isoenen
dc.project.IDEF15_003/0000358/Výpočetní a experimentální design pokročilých materiálů s novými funkcionalitamics
dc.publisherAmerican Chemical Societyen
dc.relation.ispartofseriesACS Catalysisen
dc.rights© authorsen
dc.rights.accessopenAccessen
dc.subject.translatedangle-resolved photoelectron spectroscopyen
dc.subject.translatedCO adsorptionen
dc.subject.translatedPt alloyen
dc.subject.translatedpi back-donationen
dc.subject.translatedorbital characteren
dc.titleUnderstanding the Role of Electronic Effects in CO on the Pt-Sn Alloy Surface via Band Structure Measurementsen
dc.typečlánekcs
dc.typearticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen

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