Synthesis of Silica Hollow Spheres with Diameter Around 50 nm by Anionic Surfactant  

作　　者：RAN Hua HAN Lu CHE Shun-ai 

机构地区：[1]State Key Laboratory of Composite Materials,Thin Film and Microfabrication Technology of Ministry of Education,School of Chemistry and Chemical Technology,Shanghai Jiaotong University,Shanghai 200240,P.R.China

出　　处：《Chemical Research in Chinese Universities》2012年第3期361-363,共3页高等学校化学研究（英文版）

基　　金：Supported by the National Natural Science Foundation of China(No.20890121);the National Basic Research Program of China(No.2009CB930403)

摘　　要：Silica hollow spheres（SHSs） have attracted great attention because of their low toxicity, low density, large surface area, high chemical and thermal stability, and surface permeability. They can be widely applied in storage^[l], catalysis^[2], drug deli- very^[3,4], low-dielectric-constant materials^[5], low-refractive materials^[6-8], and so on. Up to now, there have been various methods to produce SHSs. Inorganic^[9] or organic particles^[10], such as polystyrene or calcium carbonate, were used as hard templates to create hollow cavities, However, the multistep synthetic process and the lack of structural robustness of the shells upon template removal process weaken their applica- tion. Soft templates, including oil-in-water emulsions^[11,12], vesicles^[13], micelle^[14,15] and gas bubbles^[16], are applied widely.Silica hollow spheres（SHSs） have attracted great attention because of their low toxicity, low density, large surface area, high chemical and thermal stability, and surface permeability. They can be widely applied in storage^[l], catalysis^[2], drug deli- very^[3,4], low-dielectric-constant materials^[5], low-refractive materials^[6-8], and so on. Up to now, there have been various methods to produce SHSs. Inorganic^[9] or organic particles^[10], such as polystyrene or calcium carbonate, were used as hard templates to create hollow cavities, However, the multistep synthetic process and the lack of structural robustness of the shells upon template removal process weaken their applica- tion. Soft templates, including oil-in-water emulsions^[11,12], vesicles^[13], micelle^[14,15] and gas bubbles^[16], are applied widely.

关 键 词：Anionic surfactant Co-Structure directing agent（CSDA） VESICLE 

分 类 号：TQ423.11[化学工程] TQ127.2