SELECTIVE OXIDATION OF CROTYL ALCOHOL AND CROTONALDEHYDE ON V2O5/ MgO: IN SITU FTIR STUDY

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F09%3A00008488" target="_blank" >RIV/00216275:25310/09:00008488 - 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

SELECTIVE OXIDATION OF CROTYL ALCOHOL AND CROTONALDEHYDE ON V2O5/ MgO: IN SITU FTIR STUDY

Original language description

The adsorption of crotyl alcohol, crotonaldehyde and crotonic acid on MgO, V2O5 and V2O5/ MgO mixed oxide was studied under oxidizing conditions by in situ FTIR spectroscopy. The results were further analyzed in order to investigate the surface intermediates of crotonaldehyde oxidative dehydrogenation to maleic anhydride. A more stable surface compound - alkoxide was for all the oxides found during the crotyl alcohol adsorption at room temperature (RT). The reaction between the adsorbed crotonaldehyde and the oxygen atom of the catalyst resulted in the formation of carboxylate at higher temperatures (T>373 K). Presence of two different reaction products (furane and maleic anhydride) was detected from IR spectra following the crotonaldehyde adsorption at various oxygen pressures. It can be deduced, that crotonic acid easily dissociates to form the surface carboxylate-crotonate, which is further oxidized to maleate and consequently to maleic anhydride at 573 K.

Czech name

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Czech description

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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

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2009

Confidentiality

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

Name of the periodical

Reaction Kinetics and Catalysis Letters

ISSN

0133-1736

e-ISSN

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Volume of the periodical

96

Issue of the periodical within the volume

1

Country of publishing house

HU - HUNGARY

Number of pages

7

Pages from-to

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UT code for WoS article

000264183300014

EID of the result in the Scopus database

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