Keggin结构杂多酸催化剂H_mPMo_(12-n)V_nO_(40)的合成与表征  

Preparation and characterization of Keggin type H_mPMo_(12-n)V_nO_(40) catalyst

作　　者：姜涛[1] 董永利[2] 宋微娜[2] 刘蕊[3] 赵红[1] 张宏坤[1] 强亮生[3] 

机构地区：[1]黑龙江东方学院食品与环境工程学部,哈尔滨150086 [2]黑龙江科技学院现代分析测试研究中心,哈尔滨150027 [3]哈尔滨工业大学应用化学系,哈尔滨150001

出　　处：《黑龙江大学工程学报》2012年第4期29-32,共4页Journal of Engineering of Heilongjiang University

基　　金：黑龙江省教育厅科学技术研究项目(11553081)

摘　　要：通过对钒量的调控,合成了一系列HmPMo12-nVnO40杂多酸催化剂,并以H5PMo10V2O40为主体,SBA-16介孔分子筛为载体,采用浸渍法制备了负载型的HPMoV/SBA-16催化剂;利用SAXRD、WAXRD、FT-IR和UV-Vis光谱对合成的杂多酸样品及制备的负载型催化剂进行了表征结构和分析。结果表明:合成的H4PMo11V1O40,H5PMo10V2O40和H6PMo9V3O40样品均为Keggin型的杂多酸;且H5PMo10V2O40杂多酸能均匀地分散于SBA-16孔道中;制备的HPMoV/SBA-16催化剂较好的保持了SBA-16分子筛的三维立方介孔结构。A series of HmPMo12-nVnO40 heteropolyacid catalysts were synthesized by the regulation of the vanadium content. And the HsPMo10 V2O40 catalyst was further supported on the SBA-16 mesoporous molecular sieves （HPMoV/SBA-16） with impregnation method. The SAXRD, WAXRD, FT-IR and UV-Vis spectra were used to characterize the structure of synthesized heteropolyacid samples and the HPMoV/ SBA-16 catalysts. The results showed that the synthesized H4PMo11 V1O40, H5PMol0 V2O40 and H6Pmo9 V3O40 samples were of Keggin-type heteropolyacid; the heteropolyacid H5PMol0 V2O40 could be evenly dispersed in the pores of SBA-16, and the prepared HPMoV/SBA-16 catalyst well maintained the 3D cubic mesoporous structure of SBA-16 silica molecular sieves.

关 键 词：杂多酸 负载 催化剂 SBA-16 

分 类 号：O643.36[理学—物理化学]