Acetaldehyde partial oxidation on the Au (111) model catalyst surface: C-C bond activation and formation of methyl acetate as an oxidative coupling product

Simple item page
dc.citation.epage293en_US
dc.citation.spage289en_US
dc.citation.volumeNumber641en_US
dc.contributor.authorKaratok, M.en_US
dc.contributor.authorVovk, E. I.en_US
dc.contributor.authorShah, A. A.en_US
dc.contributor.authorTurksoy, A.en_US
dc.contributor.authorOzensoy, E.en_US
dc.date.accessioned2016-02-08T11:03:06Z
dc.date.available2016-02-08T11:03:06Z
dc.date.issued2015en_US
dc.departmentDepartment of Chemistryen_US
dc.description.abstractPartial oxidation of acetaldehyde (CH<inf>3</inf>CHO) on the oxygen pre-covered Au(111) single crystal model catalyst was investigated via Temperature Programmed Desorption (TPD) and Temperature Programmed Reaction Spectroscopy (TPRS) techniques, where ozone (O<inf>3</inf>) was utilized as the oxygen delivery agent providing atomic oxygen to the reacting surface. We show that for low exposures of O<inf>3</inf> and small surface oxygen coverages, two partial oxidation products namely, methyl acetate (CH<inf>3</inf>COOCH<inf>3</inf>) and acetic acid (CH<inf>3</inf>COOH) can be generated without the formation of significant quantities of carbon dioxide. The formation of methyl acetate as the oxidative coupling reaction product implies that oxygen pre-covered Au(111) single crystal model catalyst surface can activate C-C bonds. In addition to the generation of these products; indications of the polymerization of acetaldehyde on the gold surface were also observed as an additional reaction route competing with the partial and total oxidation pathways. The interplay between the partial oxidation, total oxidation and polymerization pathways reveals the complex catalytic chemistry associated with the interaction between the acetaldehyde and atomic oxygen on catalytic gold surfaces.en_US
dc.description.provenanceMade available in DSpace on 2016-02-08T11:03:06Z (GMT). No. of bitstreams: 1 bilkent-research-paper.pdf: 70227 bytes, checksum: 26e812c6f5156f83f0e77b261a471b5a (MD5) Previous issue date: 2015en
dc.identifier.doi10.1016/j.susc.2015.04.005en_US
dc.identifier.issn0039-6028
dc.identifier.urihttp://hdl.handle.net/11693/26663
dc.language.isoEnglishen_US
dc.publisherElsevieren_US
dc.relation.isversionofhttp://dx.doi.org/10.1016/j.susc.2015.04.005en_US
dc.source.titleSurface Scienceen_US
dc.subjectAcetaldehydeen_US
dc.subjectAu(111)en_US
dc.subjectMethyl acetateen_US
dc.subjectOxidative couplingen_US
dc.subjectPartial oxidationen_US
dc.titleAcetaldehyde partial oxidation on the Au (111) model catalyst surface: C-C bond activation and formation of methyl acetate as an oxidative coupling producten_US
dc.typeArticleen_US

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Acetaldehyde partial oxidation on the Au(111) model catalyst surface C-C bond activation and formation of methyl acetate as an oxidative coupling product.pdf
Size:
977.27 KB
Format:
Adobe Portable Document Format
Description:
Full printable version
Download

Collections

Scholarly Publications - Chemistry