One-pot synthesis of VOx /Al2 O3 as efficient catalysts for propane dehydrogenation

Authors : Guangjian WANG, Hao XU, Kai LU, Zhihao DING, Liancheng BING

Pages : 112-124

View : 20 | Download : 5

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :Vanadium oxides, as highly efficiently catalysts, are widely applied in various catalytic reactions, such as the dehydrogenation of light alkanes and epoxidation of alkenes. In this paper, a series of VOx /Al2O3 catalysts were fabricated by the 1-pot method for catalytic propane dehydrogenation. The results indicated that the VOx /Al2O3 catalysts with loading of 10 wt.% vanadium exhibited optimized catalytic performance. The as-prepared catalysts were characterized by N2 adsorption-desorption, XRD, TEM, H2 -TPR, and XPS to explore the texture properties, morphology, and electronic environment of vanadium. In addition, several vanadium catalysts were also prepared by the incipient wetness impregnation insert ignore into journalissuearticles values(IWI); method to compare their catalytic performance with the 1-pot synthesized catalysts. The catalysts synthesized by the 1-pot method exhibited higher selectivity of propylene and longer catalyst lifetime at high propane conversion when compared to the counterpart synthesized by the IWI method.
Keywords : One pot synthesis, propane dehydrogenation, VOx Al2O3 catalysts