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Highly efficient V–Sb–O/SiO2 catalyst with Sb atom-isolated VOx species for oxidative dehydrogenation of propane to propene

Paper ID Volume ID Publish Year Pages File Format Full-Text
49761 46764 2014 4 PDF Available
Title
Highly efficient V–Sb–O/SiO2 catalyst with Sb atom-isolated VOx species for oxidative dehydrogenation of propane to propene
Abstract

•Monomeric VOx species isolated by Sb atoms are obtained on V–Sb–O/SiO2 catalyst.•V–Sb–O/SiO2 catalyst is highly efficient in oxidative dehydrogenation of propane.•V–Sb–O/SiO2 catalyst is highly stable under reaction condition.•Sb–V mixed oxides exhibit potential in selective oxidation.

Silica supported vanadium–antimony mixed oxide catalyst (V–Sb–O/SiO2) with the OSbOVOSb framework was prepared by a two-step impregnation method, in which SbCl5 and NH4VO3 were introduced successively to generate monomeric VOx species isolated by Sb atoms. In the ODH of propane with O2 as oxidant, the V–Sb–O/SiO2 catalyst leads to high activity and high propene selectivity but depressed production of COx. At 600 °C, a 65.6% C3H6 selectivity with a 40.1% C3H8 conversion was obtained and then, a propene yield up to 26.3% was achieved on V–Sb–O/SiO2 catalyst. This yield is comparable to that for V–Mg–O catalysts, SBA-15/MCM-41supported vanadia catalysts and vanadium-containing mesoporous silica materials.

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Keywords
Propane; Oxidative dehydrogenation; V–Sb mixed oxide; Sb atom-isolated VOx species
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Highly efficient V–Sb–O/SiO2 catalyst with Sb atom-isolated VOx species for oxidative dehydrogenation of propane to propene
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 45, 5 February 2014, Pages 158–161
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us