Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 53: Issue 1
Thermogravimetric Analysis of Vanadium Phosphorus Oxide Catalysts Doped with Cobalt and Iron
Authors:
V. Martin conventionné avec l'Université Claude Bernard Lyon I Institut de Recherches sur la Catalyse, CNRS 2 avenue A. Einstein F-69626 Villeurbanne Cedex France 2 avenue A. Einstein F-69626 Villeurbanne Cedex France

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,
J. Millet conventionné avec l'Université Claude Bernard Lyon I Institut de Recherches sur la Catalyse, CNRS 2 avenue A. Einstein F-69626 Villeurbanne Cedex France 2 avenue A. Einstein F-69626 Villeurbanne Cedex France

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, and
J. Volta conventionné avec l'Université Claude Bernard Lyon I Institut de Recherches sur la Catalyse, CNRS 2 avenue A. Einstein F-69626 Villeurbanne Cedex France 2 avenue A. Einstein F-69626 Villeurbanne Cedex France

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Pages:
111–121
Online Publication Date:
03 Nov 2004
Publication Date:
01 May 1998
Article Category:
Research Article
DOI:
https://doi.org/10.1023/a:1010162018622
Keywords:
air; cobalt dopant; iron dopant; n-butane; nitrogen; thermogravimetric analysis; vanadium phosphorus oxides
Restricted access

Abstract  

The transformation of VOHPO40.5H2O (VPO) precursor doped with cobalt or iron for n-butane oxidation to maleic anhydride was investigated by thermogravimetric analysis under air and nitrogen, with and without n-butane in the flow. While almost no effect was observed in nitrogen or air, a strong influence of the doping was observed when n-butane was added to the nitrogen or air. This resulted in a delay of the decomposition of the precursor and a further reoxidation of the VPO catalyst, particularly for doping with cobalt at low percentage (1%). This shows that doping can change the oxidation state of vanadium phosphorus oxide catalysts, which can explain differences in their catalytic performances and the favourable effect of doping by cobalt.

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Cover Journal of Thermal Analysis and Calorimetry
Journal of Thermal Analysis and Calorimetry
Print ISSN:
1388-6150
Online ISSN:
1572-8943

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation		 1969
Volumes
per Year		 1
Issues
per Year		 24
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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