Dehydrogenation of Ethylbenzene in the Presence of CO2 over V Catalysts Supported on Nano-sized Alumina

被引：1
|
作者：
Bin Xiang
Changlin Yu
Hengyong Xu
Wenzhao Li
机构：
[1] Chinese Academy of Sciences,Dalian Institute of Chemical Physics
来源：
Catalysis Letters | 2008年 / 125卷
关键词：
Ethylbenzene; Dehydrogenation; Carbon dioxide; Supported vanadium oxide catalyst; Nano-sized alumina;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Nanocrystalline alumina was prepared and was employed as a support for vanadium catalysts. The catalysts were characterized by N2 adsorption/desorption, X-ray diffraction, TPR, UV–Vis, NH3-TPD, and CO2-TPSR. The activity and selectivity of the catalysts in ethylbenzene dehydrogenation in the presence of CO2 were compared with vanadium supported on commercial available alumina. The catalytic activity, selectivity, and stability were enhanced by the use of nanocrystalline alumina as catalyst supports. The superior performance of the present nano-crystalline alumina catalysts was attributed to the higher surface areas, higher vanadium dispersion, and higher stability of V5+ against reduction.
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页码：90 / 96
页数：6
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