Tungstate promoted vanadium phosphate catalysts for the gas phase oxidation of methanol to formaldehyde

Behera, Gobinda C., Parida, Kulamani, Dummer, Nicholas ORCID: https://orcid.org/0000-0002-0946-6304, Whiting, Gareth, Sahu, Nruparaj, Carley, Albert Frederick, Conte, Marco, Hutchings, Graham John ORCID: https://orcid.org/0000-0001-8885-1560 and Bartley, Jonathan Keith ORCID: https://orcid.org/0000-0003-4640-541X 2013. Tungstate promoted vanadium phosphate catalysts for the gas phase oxidation of methanol to formaldehyde. Catalysis Science & Technology 3 (6) , pp. 1558-64. 10.1039/c3cy20801j

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Abstract

Formaldehyde is an important intermediate in the pharmaceutical, plastic and automobile industries which is produced commercially via methanol oxidation. A series of tungstate promoted vanadium phosphate catalysts were prepared and characterised using a combination of XRD, UV-vis spectrometry, XPS and ammonia TPD. The 25 wt% WO3–VPO catalyst exhibited good activity for the selective gas phase oxidation of methanol with >90% conversion at around 250 °C. This is a considerably lower temperature than used in the current industrial process using either silver or iron molybdate catalysts. This increased activity at low temperatures is ascribed to the increase in Brønsted acidity and redox properties of the tungstate doped materials.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Cardiff Catalysis Institute (CCI) Chemistry
Subjects:	Q Science > QD Chemistry
Publisher:	Royal Society of Chemistry
ISSN:	2044-4753
Last Modified:	24 Oct 2022 10:51
URI:	https://orca.cardiff.ac.uk/id/eprint/46131

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