新型纳米复合杂多酸催化剂H_3PW_(12)O_(40)/SiO_2催化合成水杨酸异丙酯的研究  

Synthesis of Isopropyl Salicylate Catalyzed by New Type Nanoparticle Heteropoly Acid Catalyst H_3PW_(12)O_(40)/SiO_2

作　　者：张卫华[1] 徐扬子[2] 周立群[1] 雷宇[1] 柳士忠[1] 

机构地区：[1]湖北大学化学与材料科学学院,湖北武汉430062 [2]湖北大学物理学与电子技术学院,湖北武汉430062

出　　处：《分子催化》2003年第4期306-309,共4页Journal of Molecular Catalysis(China)

基　　金：湖北省教育厅科技创新项目(NO:2000D01003).

摘　　要：A new nanoparticle heteropoly acid H\-3PW\-\{12\}O\-\{40\}/SiO\-2 is prepared using the sol\|gel method to catalyze synthesis of isopropyl salicylate. The structure and configuration of the nanoparticle heteropoly acid have been studied by IR, XRD, XPS and TEM. The reaction conditions such as molar ratio of isopropanol to salicylic acid, reaction time, temperature and the amount of the catalyst were studied. The results showed that the yield of isopropyl salicylate is up to 85.2%.A new nanoparticle heteropoly acid H\-3PW\-\{12\}O\-\{40\}/SiO\-2 is prepared using the sol\|gel method to catalyze synthesis of isopropyl salicylate. The structure and configuration of the nanoparticle heteropoly acid have been studied by IR, XRD, XPS and TEM. The reaction conditions such as molar ratio of isopropanol to salicylic acid, reaction time, temperature and the amount of the catalyst were studied. The results showed that the yield of isopropyl salicylate is up to 85.2%.

关 键 词：纳米粒子 杂多酸 水杨酸异丙酯 催化 

分 类 号：O643.32[理学—物理化学] TQ426.91[理学—化学]