Digitální knihovnaUPCE
 

Ftir study of crotyl alcohol, crotonaldehyde and crotonic acid adsorption on the surface of the V/Zr oxide catalyst

Článekpeer-reviewedpublished
Náhled

Datum publikování

2007

Vedoucí práce

Oponent

Název časopisu

Název svazku

Vydavatel

Univerzita Pardubice

Abstrakt

Infrared studies of crotyl alcohol (but-2-en-1-ol), crotonaldehyde (but-2-enal) and crotonic acid (but-2-enoic acid) adsorption were carried out on ZrO2 - supported vanadium catalyst. The results were used to analyze the surface intermediates of crotonaldehyde dehydrogenation to maleic anhydride. Crotyl alcohol was adsorbed mainly in the alkoxide form, which is oxidized to crotonaldehyde and consecutively to crotonic acid. Final step in crotyl alcohol adsorption on V2O5-ZrO2 catalysis is the conversion of carboxylate species into maleic anhydride. The reaction of adsorbed crotonaldehyde and the oxygen atom of the catalyst resulted in the formation of carboxylate at higher temperature. The presence of two different surface carboxylate species (maleate and crotonate) was shown from IR spectra following crotonic acid adsorption. As distinct from the crotyl alcohol adsorption, the presence of surface maleic anhydride after adsorp-tion of crotonic acid and*or crotonaldehyde on V2O5-ZrO2 catalyst was not shown.

Rozsah stran

p. 71-79

ISSN

1211-5541

Trvalý odkaz na tento záznam

Projekt

Zdrojový dokument

Scientific papers of the University of Pardubice. Series A, Faculty of Chemical technology. 12(2006)

Vydavatelská verze

Přístup k e-verzi

open access

Název akce

ISBN

Studijní obor

Studijní program

Signatura tištěné verze

47333

Umístění tištěné verze

Univerzitní knihovna (studovna)

Přístup k tištěné verzi

Klíčová slova

FTIR spektroskopie, krotonaldehyd, krotonová kyselina, Adsorpce, povrch, oxidy vanadu

Endorsement

Review

item.page.supplemented

item.page.referenced