Preparation of vanadium phosphate catalyst precursors for the selective oxidation of butane using α,ω-alkanediols

Fan, Xiaobing, Dummer, Nicholas ORCID: https://orcid.org/0000-0002-0946-6304, Taylor, Stuart H. ORCID: https://orcid.org/0000-0002-1933-4874, Bartley, Jonathan Keith ORCID: https://orcid.org/0000-0003-4640-541X and Hutchings, Graham John ORCID: https://orcid.org/0000-0001-8885-1560 2012. Preparation of vanadium phosphate catalyst precursors for the selective oxidation of butane using α,ω-alkanediols. Catalysis Today 183 (1) , pp. 52-57. 10.1016/j.cattod.2011.08.030

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Abstract

Vanadium phosphate catalyst precursors were prepared from V2O5 and H3PO4 or VOPO4·2H2O using α,ω-alkanediols (1,4-butanediol, 1,5-pentanediol and 1,6-hexanediol) as both the reducing agent and the solvent. A series of layered VOHPO4·HO(CH2)nOH (n = 4–6) materials intercalated with α,ω-alkanediols were obtained. The performance for butane oxidation of the final catalysts formed via the in situ transformation of the VOHPO4·HO(CH2)nOH precursors under reaction conditions is described. The final catalysts derived from the alkanediol intercalated materials were found to exhibit relatively low selectivities to maleic anhydride and comprised of VV (VOPO4) phases with an amorphous VIV phase. However, when a crystalline (VIVO)2P2O7 phase is present, with small amounts of VV phases, as with materials prepared with 1,4-butanediol, the specific and intrinsic catalytic activity are higher.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Chemistry Cardiff Catalysis Institute (CCI)
Subjects:	Q Science > QD Chemistry
Uncontrolled Keywords:	α,ω-Alkanediols; Butane; Intercalation; Selective oxidation; Vanadium pyrophosphate
Publisher:	Elsevier
ISSN:	0920-5861
Last Modified:	05 Jan 2023 09:52
URI:	https://orca.cardiff.ac.uk/id/eprint/10216

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