Structure-reactivity relationships in supported VOx catalysts for the 
oxyhydrative scission (OHS) of 1-butene and n-butane to acetic acid: A 
comprehensive catalytic and in situ study

Brückner, Angelika; Bentrup, Ursula; Fait, Martin; Kubias, Bernd

doi:10.1016/j.cattod.2004.09.031

Datensatz

DATENSATZ AKTIONENEXPORT

Zur Ablage hinzufügen

Lokale TagsFreigabegeschichteDetailsÜbersicht

Freigegeben

Zeitschriftenartikel

Structure-reactivity relationships in supported VOx catalysts for the oxyhydrative scission (OHS) of 1-butene and n-butane to acetic acid: A comprehensive catalytic and in situ study

MPG-Autoren

/persons/resource/persons21769

Kubias, Bernd
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)

BentrupKubiasDGMK04-Manuscript_010904korr27.6.06.pdf
(beliebiger Volltext), 161KB

Ergänzendes Material (frei zugänglich)

Es sind keine frei zugänglichen Ergänzenden Materialien verfügbar

Zitation

Brückner, A., Bentrup, U., Fait, M., & Kubias, B. (2005). Structure-reactivity relationships in supported VOx catalysts for the oxyhydrative scission (OHS) of 1-butene and n-butane to acetic acid: A comprehensive catalytic and in situ study. Catalysis Today, 99(1-2), 123-129. doi:10.1016/j.cattod.2004.09.031.

Zitierlink: https://hdl.handle.net/11858/00-001M-0000-0011-0A57-2

Zusammenfassung

A pure and an antimony-modified VOx/TiO2 catalyst have been catalytically tested in a total pressure range of 1-17 bar and studied by in situ-FTIR, in situ-UV/vis and operando-EPR spectroscopy at normal pressure in the oxyhydrative scission (OHS) of 1-butene and n-butane to acetic acid (AA). While 1-butene OHS follows the sequence butene  butoxide  ketone  acetate/AA with a multitude of trace side products also formed, n-butane OHS leads to AA, COx and H2O only. Adding water to the feed improves AA selectivity by favouring the hydrolysis of the ketone intermediate. Doping by Sb was found to improve AA selectivity being due, among other reasons, to deeper V reduction under steady state conditions. Activity in n-butane OHS decreases continuously with rising total pressure while both activity and selectivity in 1-butene OHS pass a maximum at 7 bar.