Deutsch
 
Hilfe Datenschutzhinweis Impressum
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT
Zur Ablage hinzufügen
  Lokale TagsFreigabegeschichteDetailsÜbersicht

Freigegeben
Zeitschriftenartikel

Dynamic surface behaviour of VPO catalysts under reactive and non-reactive gas compositions: an in-situ XAS study

MPG-Autoren
/persons/resource/persons21590

Hävecker,  Michael
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons21743

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

/persons/resource/persons21376

Bluhm,  Hendrik
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons21730

Kleimenov,  Evgueni
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons21853

Mayer,  Ralf W.
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons21500

Fait,  Martin
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons22071

Schlögl,  Robert
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

Externe Ressourcen
Es sind keine externen Ressourcen hinterlegt
Volltexte (beschränkter Zugriff)
Für Ihren IP-Bereich sind aktuell keine Volltexte freigegeben.
Volltexte (frei zugänglich)

applsurfsci230_2004.pdf
(beliebiger Volltext), 300KB

Ergänzendes Material (frei zugänglich)
Es sind keine frei zugänglichen Ergänzenden Materialien verfügbar
Zitation

Hävecker, M., Knop-Gericke, A., Bluhm, H., Kleimenov, E., Mayer, R. W., Fait, M., et al. (2004). Dynamic surface behaviour of VPO catalysts under reactive and non-reactive gas compositions: an in-situ XAS study. Applied Surface Science, 230(1-4), 272-282. doi:10.1016/j.apsusc.2004.02.037.


Zitierlink: https://hdl.handle.net/11858/00-001M-0000-0011-0CAE-E
Zusammenfassung
The surface of an activated vanadium phosphorus oxide (VPO) catalyst was investigated by means of in situ X-ray absorption spectroscopy in the total electron yield mode. We observed significant changes of the V L3-near edge X-ray absorption fine structure (NEXAFS) when the material was transferred from room temperature to working conditions at 400°C in the reaction atmosphere. We studied the same VPO material under different gas compositions comprising the reaction mixture of n-butane and oxygen, pure oxygen and vacuum to elucidate the influence of the gas-surface interaction and the effect of the temperature. The results of this extensive study indicate a dynamic response of the catalyst surface to the applied conditions.