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Influence of Bi–Fe additive on properties of vanadium phosphate catalysts for n-butane oxidation to maleic anhydride


Citation

Goh, Chee Keong and Yap, Taufiq Yun Hin and Hutchings, Graham John and Dummer, Nicholas F. and Bartley, Jonathan K. (2008) Influence of Bi–Fe additive on properties of vanadium phosphate catalysts for n-butane oxidation to maleic anhydride. Catalysis Today, 131 (1-4). pp. 408-412. ISSN 0920-5861

Abstract / Synopsis

The physico-chemical and catalytic properties of three ways of modified catalysts were studied, i.e. (i) the addition of both Bi and Fe (nitrate form) during the refluxing VOPO4·2H2O with isobutanol (Catalyst A), (ii) the simultaneous addition of BiFe oxide powder in the course of the synthesis of precursor VOHPO4·0.5H2O (Catalyst B) and (iii) the mechanochemical treatment of precursor VOHPO4·0.5H2O and BiFe oxide in ethanol (Catalyst C). It was found that surface area of the modified catalysts has increased except Catalyst B. The reactivity of the oxygen species linked to V5+ and V4+ was studied by using H2-TPR, which also affected the catalytic performance of the catalyst. The conversion of n-butane decreases with an increment of oxygen species associated with V5+.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Science
DOI Number: 10.1016/j.cattod.2007.10.059
Publisher: Elsevier
Keywords: Vanadium phosphate; n-Butane; Oxidation; Oxygen species; Maleic anhydride
Depositing User: Najwani Amir Sariffudin
Date Deposited: 13 Apr 2010 09:47
Last Modified: 28 Nov 2016 15:39
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/j.cattod.2007.10.059
URI: http://psasir.upm.edu.my/id/eprint/4911
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