dc.contributor.author
Eltayeb, Salma
dc.contributor.author
Carroll, Lenard L.
dc.contributor.author
Dippel, Lukas
dc.contributor.author
Mostaghimi, Mersad
dc.contributor.author
Riedel, Wiebke
dc.contributor.author
Moskaleva, Lyudmila V.
dc.contributor.author
Risse, Thomas
dc.date.accessioned
2024-05-30T08:15:04Z
dc.date.available
2024-05-30T08:15:04Z
dc.identifier.uri
https://refubium.fu-berlin.de/handle/fub188/43515
dc.identifier.uri
http://dx.doi.org/10.17169/refubium-43231
dc.description.abstract
Partial methanol oxidation proceeds with high selectivity to methyl formate (MeFo) on nanoporous gold (npAu) catalysts. As low-coordinated sites on npAu were suggested to affect the selectivity, we experimentally investigated their role in the isothermal selectivity for flat Au(111) and stepped Au(332) model surfaces using a molecular beam approach under well-defined conditions. Direct comparison shows that steps enhance desired MeFo formation and lower undesired overoxidation. DFT calculations reveal differences in oxygen distribution that enhance the barriers to overoxidation at steps. Thus, these results provide an atomic-level understanding of factors controlling the complex reaction network on gold catalysts, such as npAu.
en
dc.format.extent
6 Seiten
dc.rights.uri
https://creativecommons.org/licenses/by/4.0/
dc.subject
low-coordinated sites
en
dc.subject.ddc
500 Naturwissenschaften und Mathematik::540 Chemie::540 Chemie und zugeordnete Wissenschaften
dc.title
Partial Oxidation of Methanol on Gold: How Selectivity Is Steered by Low-Coordinated Sites
dc.type
Wissenschaftlicher Artikel
dcterms.bibliographicCitation.doi
10.1021/acscatal.3c04578
dcterms.bibliographicCitation.journaltitle
ACS Catalysis
dcterms.bibliographicCitation.number
10
dcterms.bibliographicCitation.pagestart
7901
dcterms.bibliographicCitation.pageend
7906
dcterms.bibliographicCitation.volume
14
dcterms.bibliographicCitation.url
https://doi.org/10.1021/acscatal.3c04578
refubium.affiliation
Biologie, Chemie, Pharmazie
refubium.affiliation.other
Institut für Chemie und Biochemie

refubium.funding
ACS Publications
refubium.note.author
Die Publikation wurde aus Open Access Publikationsgeldern der Freien Universität Berlin gefördert.
refubium.resourceType.isindependentpub
no
dcterms.accessRights.openaire
open access
dcterms.isPartOf.eissn
2155-5435