FTIR study of Crotyl alcohol, Crotonaldehyde and Crotonic acid adsorption on the surface of the V/Zr oxide catalyst

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F06%3A00004107" target="_blank" >RIV/00216275:25310/06:00004107 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

FTIR study of Crotyl alcohol, Crotonaldehyde and Crotonic acid adsorption on the surface of the V/Zr oxide catalyst

Original language description

Infrared studies of crotyl alcohol (2-butene-1-ol), crotonaldehyde (2-butenal) and crotonic acid (2-butenoic 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 catalyst is the conversion ofcarboxylate 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 andcrotonate) was shown from IR spectra following crotonic acid adsorption. As distinct from the crotyl alcohol adsorption, the presence of surface maleic anhydride after adsorption of crotonic acid, respectively crotonaldehyde on V2O5-ZrO2

Czech name

FTIR studie adsorpce krotylalkoholu, krotonaldehydu a kyseliny krotonové na povrchu V/Zr oxidovém katalyzátoru

Czech description

Byla studována Ič spectra adsorpce krotylalkoholu, krotonaldehydu a kyseliny krotonové na V/Zr oxidovém katalyzátoru za účelem identifikace meziproduktů oxidativní dehydrogenace krotonaldehydu na anhydrid kyseliny maleinové. Krotylalkohol se vyskytuje napovrchu výše zminovaného systému převážně ve formě alkoxidu, který je oxidován na krotonaldehyd a následně na kyselinu krotonovou. Vposledním kroku dochází k transformaci karboxylátu na anhydrid kyseliny maleinové. Na základě analýzy specter po adsorpcikyseliny krotonové byla dokázána přítomnost dvou odlišných karboxylátů a to kyseliny krotonové a maleinové.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CF - Physical chemistry and theoretical chemistry

OECD FORD branch

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Project

<a href="/en/project/GP104%2F02%2FD165" target="_blank" >GP104/02/D165: FTIR study of the Catalytic Oxidative Dehydrogenation of Crotonaldehyde in the Gas Phase</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2006

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Scientific Papers of the University of Pardubice, Series A

ISSN

1211-5541

e-ISSN

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Volume of the periodical

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Issue of the periodical within the volume

12

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

9

Pages from-to

71-79

UT code for WoS article

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EID of the result in the Scopus database

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