- Title
- Highly efficient V-Sb-O/SiO₂ catalyst with Sb atom-isolated VOx species for oxidative dehydrogenation of propane to propene
- Creator
- Zhang, Haidong; Cao, Shujie; Zou, Yu; Wang, Yi-Meng; Zhou, Xiaojing; Shen, Yu; Zheng, Xuxu
- Relation
- Catalysis Communications Vol. 45, p. 158-161
- Publisher Link
- http://dx.doi.org/10.1016/j.catcom.2013.11.014
- Publisher
- Elsevier BV
- Resource Type
- journal article
- Date
- 2014
- Description
- Silica supported vanadium–antimony mixed oxide catalyst (V–Sb–O/SiO₂) with the single ⎯⎯O⎯⎯Sb⎯⎯O⎯⎯V⎯⎯O⎯⎯Sb⎯⎯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.
- Subject
- propane; oxidative dehydrogenation; V-Sb mixed oxide; Sb atom-isolated VOx species
- Identifier
- http://hdl.handle.net/1959.13/1303454
- Identifier
- uon:20657
- Identifier
- ISSN:1566-7367
- Language
- eng
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