催化苯羟基化反应的高效介孔VO_x/SBA-16催化剂(英文)  

Highly Efficient VO_x/SBA-16 Mesoporous Catalyst for Hydroxylation of Benzene

作　　者：朱宇君[1] 董永利[1,2] 赵丽娜[1] 袁福龙[1] 付宏刚[1] 

机构地区：[1]黑龙江大学化学化工与材料学院,黑龙江省功能材料高校重点实验室,黑龙江哈尔滨150080 [2]黑龙江科技学院工程训练与基础实验中心,黑龙江哈尔滨150027

出　　处：《催化学报》2008年第11期1067-1069,共3页

基　　金：Supported by the Science and Technology Foundation of Office of Education of Heilongjiang Province (10551251)

摘　　要：利用浸渍法制备了介孔SBA-16负载高分散氧化钒催化剂(VOx/SBA-16),并使用XRD,TEM,N2物理吸附和Raman光谱对其进行了表征.结果表明,制备的VOx/SBA-16催化剂保持了SBA-16立方笼状孔结构,钒物种主要高度分散在SBA-16载体孔内.钒含量为7·3%的VOx/SBA-16催化剂在催化苯羟基化反应中表现出优异的催化性能.这是由于催化剂表面形成了高分散的VO4物种和纳米结构V2O5微晶.Highly dispersed vanadium oxide supported on mesoporous SBA-16 （VOx/SBA-16） were prepared by the impregnation method and characterized by XRD, TEM, N2 adsorption, and Raman spectroscopy. The VOx/SBA-16 catalysts retained the cubic cage-like pore structure of SBA-16 and the vanadia species was highly dispersed and mainly in the pores of the SBA-16 support. 7.3 % VOx/SBA-16 showed excellent activity for the hydroxylation of benzene, which was attributed to the formation of highly dispersed VO4 species and nanostructured V2O5 microcrystallite.

关 键 词：钒 SBA-16 高分散 苯 羟基化 

分 类 号：O643.36[理学—物理化学]