两种多酸基无机-有机杂化纳米材料的合成、表征与催化作用研究探讨  

Synthesis,characterization and study on catalytic capability of two inorganic-organic hybrid nanomaterials based on dodecaheteropolytungstate

作　　者：朱再明[1] 郑淑丽[1] 张澜萃[1] 李晓辉[1] 杨爱华[1] 陆敏[2] 

机构地区：[1]辽宁师范大学化学化工学院,辽宁大连116029 [2]辽宁师范大学化学分析测试中心,辽宁大连116029

出　　处：《辽宁师范大学学报（自然科学版）》2009年第3期329-331,共3页Journal of Liaoning Normal University:Natural Science Edition

基　　金：辽宁省教育厅科学技术研究项目(2008364)

摘　　要：采用室温固相法合成了2种无机-有机杂化纳米材料,1∶12杂多酸苄基三甲基铵盐纳米微粒,(C10H16N)3[PW12O40].5H2O(1)和(C10H16N)4[SiW12O40].2H2O(2).分别用元素分析I、R、TG-DTA和TEM等对其组成、结构、颗粒大小和表面形态等进行了表征.并研究、探讨了2种材料对H2O2分解的催化作用.结果显示,2种产物的微粒仍保持Keggin结构,化合物1微粒近似为球形,化合物2微粒为棒形,平均粒径分别为60 nm和50 nm.2种季铵盐纳米微粒对H2O2分解均具有一定的催化作用.Two Inorganic-Organic Hybrid Nanomaterials, the benzyl-trimethylammonium nanoparticles of 1 ： 12 heteropolyacid, （C10H16N）3[PW12O40]·5H2O（1） amd （C10H16N）4[SiW12O40]·2H2O（2） were prepared by solid-state reaction at room temperature. Their structure, particle size and appearances were characterized by elemental analyses, IR, TG-DTA, XRD and TEM techniques. And their catalytic action on decomposition of H2O2 was discussed. The results show that the two particles retain Keggin structure. The shapes of the two nanoparticles are near spherical for compound 1 and clubbed for compound 2. The size is about 60 nm and 50 nm respectively. The two quaternary ammonium salt nanoparticles have some catalytic activity on decomposition of H2O2.

关 键 词：杂多钨酸盐 苄基三甲基铵盐 纳米微粒 固相合成 催化性能 

分 类 号：O611.4[理学—无机化学]