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Oxidative and Non-Oxidative Degradation of C1–C3 Carboxylic Acids over V2O5/TiO2 and MoVTeNb Oxides: A Comparative Study Full article

Journal Applied Catalysis A: General
ISSN: 0926-860X , E-ISSN: 1873-3875
Output data Year: 2013, Volume: 466, Pages: 45-50 Pages count : 6 DOI: 10.1016/j.apcata.2013.06.018
Tags Acetic acid, Degradation, Formic acid, Mo-V-Te-Nb mixed oxides, Oxidative degradation, Propionic acid, V2O5/TiO2
Authors Sobolev Vladimir I. 1 , Koltunov Konstantin Yu. 1,2
Affiliations
1 Boreskov Institute of Catalysis, Russian Academy of Science, Pr. Akademika Lavrentieva, 5, Novosibirsk 630090, Russia
2 Novosibirsk State University, Pirogova, 2, Novosibirsk 630090, Russia

Abstract: Carboxylic acids are valuable chemical products, which can be produced efficiently by catalytic oxidation of various organic compounds using vanadium-based catalysts. Degradation resistance of carboxylic acids under applied reaction conditions is an important factor influencing selectivity of such reactions. This paper addresses the oxidative and non-oxidative gas phase degradation of formic, acetic and propionic acids over V2O5/TiO2 and MoVTeNb mixed oxides. Formic acid has been found to undergo mainly acid catalyzed decarbonylation, regardless the presence or absence of oxygen in the feed. Both acetic and propionic acids underwent oxidation (in aerobic conditions) through one-carbon degradation steps until CO and CO2 were produced. The mechanistic aspects of these transformations are discussed. The key intermediacy of 2-(hydro)peroxy carboxylic acids is suggested, based on the nature of primary reaction products. The catalytic activity of MoVTeNb mixed oxides toward oxidative and non-oxidative degradation of acetic and propionic acids appeared notably lower compared to that of V2O5/TiO2. This may be linked to the enhanced efficiency of the former catalyst in selective oxidation of organic substrates to carboxylic acids.
Cite: Sobolev V.I. , Koltunov K.Y.
Oxidative and Non-Oxidative Degradation of C1–C3 Carboxylic Acids over V2O5/TiO2 and MoVTeNb Oxides: A Comparative Study
Applied Catalysis A: General. 2013. V.466. P.45-50. DOI: 10.1016/j.apcata.2013.06.018 WOS Scopus РИНЦ ANCAN OpenAlex
Dates:
Submitted: Apr 2, 2013
Accepted: Jun 17, 2013
Published online: Jun 25, 2013
Published print: Sep 10, 2013
Identifiers:
Web of science: WOS:000324656500006
Scopus: 2-s2.0-84880606652
Elibrary: 20444452
Chemical Abstracts: 2013:1324107
Chemical Abstracts (print): 159:414168
OpenAlex: W2029063625
Citing:
DB Citing
Web of science 7
Scopus 7
Elibrary 7
OpenAlex 7
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