微孔多酸Cs_xH_(5-x)PW_(10)V_2O_(40)/SiO_2的制备及氧化催化作用

作     者：彭革 胡长文 王永慧 陈立东 王恩波 冯守华 刘彦勇 

作者机构：东北师范大学化学学院多酸化学研究所长春130024 吉林大学无机合成与制备化学国家重点实验室长春130023 日本千叶开发研究所化学技术部 

出 版 物：《高等学校化学学报》 (Chemical Journal of Chinese Universities)

年 卷 期：2002年第23卷第3期

页      面：478-480页

核心收录：

学科分类：081704[工学-应用化学] 081705[工学-工业催化] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学] 

基　　金：国家自然科学基金 (批准号 :2 0 0 710 0 7)资助 

主　　题：微孔杂多酸 制备 结构表征 苯甲醇 氧化催化 苯甲醛 催化剂 杂多酸铯盐 二氧化硅载体 

摘      要：Microporous heteropolyoxometalates Cs\-\%x\%H\-\{5-\%x\%\}PW\-\{10\}V\-2O\-\{40\}/SiO\-2 were synthesized by a sol\|gel technique and characterized by IR, UV\|Vis, BET adsorption/desorption isotherm. The structural frameworks of Cs\-\%x\%H\-\{5-\%x\%\}PW\-\{10\}V\-2O\-\{40\} are preserved within the silica networks. Cs\-\%x\%H\-\{5-\%x\%\}PW\-\{10\}V\-2O\-\{40\}/SiO\-2 are a kind of polyoxometalate\|silica gel hybrids with uniform micropores of ca. 0.65 nm. They show a high catalytic activity for oxidation reaction of benzyl alcohol by H\-2O\-2(30%) in liquid\|solid systems and product selectivity for benzaldehyde(96%). The highest activity is observed at \%x\%=2.5 in Cs\-\%x\%H\-\{5-\%x\%\}PW\-\{10\}V\-2O\-\{40\}/SiO\-2 and little formation of benzoic acid and a more deeply oxidized product is observed.