作　　者： ; ; ; ; ;

机构地区： 仲恺农业工程学院化学化工学院绿色化工研究所

出　　处： 《化工学报》 2009年第8期2137-2140,共4页

摘　　要： The direct synthesis of templated super-microporous silica with spherical and cylindrical shapes was achieved in a water/acetonitrile/n-dodecylamine system,using 3-mercaptopropyltrimethoxysilane and 3-trifluoromethyltrimethylsilane as co-template.The benefits of this system to prepare such silicas were high surface area,much enhanced wall thickness,and consequently to greater structural stability.The particles obtained from this route were spherical and cylindrical.The sample was characterized by using N2 adsorption /desorption,XRD,FTIR,SEM ,TG-DSC and 13C CP MAS NMR methods,and the process of the direct preparation was given. The direct synthesis of templated super-microporous silica with spherical and cylindrical shapes was achieved in a water/acetonitrile/n-dodecylamine system, using 3-mercaptopropyltrimethoxysilane and 3-trifluoromethyltrimethylsilane as co-template. The benefits of this system to prepare such silicas were high surface area, much enhanced wall thickness, and consequently to greater structural stability. The particles obtained from this route were spherical and cylindrical. The sample was characterized by using N2 adsorption/desorption, XRD, FTIR, SEM , TG-DSC and ^13C CP MAS NMR methods, and the process of the direct preparation was given.

关 键 词： 超微孔 球状和柱状 硅烷

领　　域： [理学] [理学]