ESR Characterization and Activity of V_2O_5/γ-Al_2O_3 Catalysts for Dehydrogenation of Isobutane  

作　　者：WANG Guo-jia MA Hong-chao LI Ying 

机构地区：[1]College of Chemistry,Jilin University,Changchun 130023,P.R.China

出　　处：《Chemical Research in Chinese Universities》2002年第4期445-447,共3页高等学校化学研究(英文版)

基　　金：Supported by the National Natural Science Foundation of China( No.2 98730 19)

摘　　要：The ESR spectra of catalyst V_2O_5/γ-Al_2O_3 and its activity for the dehydrogenation of isobutane were investigated. On the basis of the results of the ESR spectroscopy associated with the TPR results, it is suggested that there is a strong interaction between V_2O_5 and γ-Al_2O_3 and the V 4+ species on the surface is the active center of catalyst V_2O_5/γ-Al_2O_3 for this reaction.The ESR spectra of catalyst V_2O_5/γ-Al_2O_3 and its activity for the dehydrogenation of isobutane were investigated. On the basis of the results of the ESR spectroscopy associated with the TPR results, it is suggested that there is a strong interaction between V_2O_5 and γ-Al_2O_3 and the V 4+ species on the surface is the active center of catalyst V_2O_5/γ-Al_2O_3 for this reaction.

关 键 词：V_2O_5/γ-Al_2O_3 Isobutane dehydrogenation ISOBUTENE 

分 类 号：O643.3[理学—物理化学]