微波辐射下纳米水滑石的合成  

Synthesis of Nano-hydrotalcite under Microwave Irradiation

作　　者：梅秀娟[1] 张泽江[1] 覃文清[1] 兰彬[1] 陈春霞[2] 邱发礼[2] 

机构地区：[1]公安部四川消防研究所,四川成都611830 [2]中国科学院成都有机化学研究所,四川成都610041

出　　处：《合成化学》2006年第1期23-27,共5页Chinese Journal of Synthetic Chemistry

基　　金：国家重点基础研究专项经费资助项目(2001CB409607)

摘　　要：在微波辐射下用变速滴加共沉淀法合成了粒径为10 nm^40 nm的Mg-A l纳米水滑石(nano-HT),其结构经XRD,TEM,TG和元素分析表征。以nano-HT为载体,制备了Cu/nano-HT和CuN i/nano-HT催化剂,通过苯酚羟基化反应考察了它们的催化活性,实验结果表明,双氧水有效利用率和产物的选择性均比以常规水滑石为载体的催化剂高。Nano-hydrotalcite（nano-HT, 10 nm - 40 nm） was synthesized by the method of variablespeed dripping alkali under microwave irradiation and was characterized by XRD, TEM, TG and elemental analysis. The catalysts of Cu/nano-HT and CuNi/nano-HT were prepared using nano-HT as a supporter. The catalytic activities of the catalysts were studied in phenol hydroxylation. The results showed that the effective utilization-ratio of hydrogen peroxide and the selectivity of reaction were better than the conventional hydrotalcites.

关 键 词：纳米材料 水滑石 催化剂 微波 苯酚 羟基化 

分 类 号：O643.36[理学—物理化学] TQ314.248[理学—化学]