Preparation of nano-sized Al_2O_3-2SiO_2 powder by sol-gel plus azeotropic distillation method

查看全文 作　　者：Guangjian [1,2]Zheng;Xuemin [1]Cui;Weipeng [1]Zhang;Zhangfa [1]Tong;Feng [2]Li

机构地区：[1]Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Cuangxi University, Nanning530004, China;[2]State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China

出　　处：《Particuology》索引2012年第10卷第1期,共4页

基　　金：supported by National Natural Science foundation of China(50962002,50602006);the Dean Project of Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology(No.K013);Opening Funds of State Key Laboratory of Chemical Resource Engineering of Beijing University of Chemical Technology(No.201008) 摘　　要：Nano-sized amorphous Al 2 O 3 -2SiO 2 powder was prepared by a sol-gel method coupled with azeotropic distillation. The structure of the powder was investigated by DTS, BET, TEM, FT-IR, TG-DTA and XRD, showing that n-butanol azeotropic distillation could effectively remove water from the aluminosilicate gels and prevent the formation of hard agglomerates in the drying process. The average particle diameter of the powder was about 70 nm. The largest BET specific surface area of the powder was 669 m 2 /g. To examine the alkali-activation reactivity of the powder, alkali-activation tests were performed with the powder reacting with sodium silicate solution. The synthetic powder was found to be highly reactive. 关键词：纳米氧化铝共沸蒸馏蒸馏方法凝胶溶胶制备 BET比表面积 TG-DTA

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Preparation of nano-sized Al_2O_3-2SiO_2 powder by sol-gel plus azeotropic distillation method

参考文献(20)

引证文献(7)

耦合文献(155)

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