Deutsch
 
Hilfe Datenschutzhinweis Impressum
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT
Zur Ablage hinzufügen
  Lokale TagsFreigabegeschichteDetailsÜbersicht

Freigegeben
Zeitschriftenartikel

Strong Metal Support Interaction as a key factor of Au activation in CO oxidation

MPG-Autoren
/persons/resource/persons32779

Klyushin,  Alexander
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;
Division of Energy Material, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH;

/persons/resource/persons135780

Jones,  Travis
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons41515

Lunkenbein,  Thomas
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons21768

Kube,  Pierre
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons126970

Li,  Xuan
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons21743

Knop-Gericke,  Axel
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons22071

Schlögl,  Robert
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;
Division of Energy Material, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH;
Department of Heterogeneous Reactions, Max-Planck-Institute for Chemical Energy Conversion;

Externe Ressourcen
Es sind keine externen Ressourcen hinterlegt
Volltexte (beschränkter Zugriff)
Für Ihren IP-Bereich sind aktuell keine Volltexte freigegeben.
Volltexte (frei zugänglich)
Ergänzendes Material (frei zugänglich)
Es sind keine frei zugänglichen Ergänzenden Materialien verfügbar
Zitation

Klyushin, A., Jones, T., Lunkenbein, T., Kube, P., Li, X., Hävecker, M., et al. (2018). Strong Metal Support Interaction as a key factor of Au activation in CO oxidation. ChemCatChem, 10(18), 3985-3989. doi:10.1002/cctc.201800972.


Zitierlink: https://hdl.handle.net/21.11116/0000-0001-AC5C-7
Zusammenfassung
We address the question of the nature of Au NP activation and through a combination of experimental and theoretical techniques. In‐situ XPS measurements of Au/TiO₂ during CO oxidation show high catalytic activity can be associated with the formation of an ionic Au species. DFT calculations performed on Au/TiO₂ show that the formation of such ionic Au is due to a strong metal‐support interaction between Au and reduced and defective TiO₂. TEM supports these findings, indicating the formation of an overlayer of transition metal oxide support on Au NPs after CO oxidation. These results suggest TiO₂ lattice oxygen is involved directly in CO oxidation, which was confirmed with labeled ¹⁸O₂ experiments.