Oxidative dehydrogenation of n-butane over mesoporous VO x /SBA-15 catalysts

Mesoporous VOx/SBA-15 catalysts with different V contents were evaluated for the oxidative dehydrogenation of n-butane and characterized by N2 adsorption, XRD, HRTEM, H2-TPR, NH3-TPD, XPS, and EPR techniques. Compared to conventional V2O5/SiO2 catalysts, the VOx/SBA-15 catalysts showed better perfor...

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Veröffentlicht in:	Catalysis letters 2007-02, Vol.113 (3-4), p.147-154
Hauptverfasser:	Liu, Wei, Suk Yin Lai, Dai, Hongxing, Wang, Shuiju, Sun, Haizhen, Chak Tong Au
Format:	Artikel
Sprache:	eng
Schlagworte:	Ammonia Catalysis Catalysts Dehydrogenation Porosity Silicon dioxide X ray photoelectron spectroscopy
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Zusammenfassung:	Mesoporous VOx/SBA-15 catalysts with different V contents were evaluated for the oxidative dehydrogenation of n-butane and characterized by N2 adsorption, XRD, HRTEM, H2-TPR, NH3-TPD, XPS, and EPR techniques. Compared to conventional V2O5/SiO2 catalysts, the VOx/SBA-15 catalysts showed better performance. The good performance can be attributed to the good dispersion of V species, presence of V4+ species and the pore structure.
ISSN:	1011-372X 1572-879X
DOI:	10.1007/s10562-007-9023-y