文献类型：期刊文章

作　　者：金政伟[1] 汪晓东[1] 崔秀国[2]

机构地区：[1]北京化工大学化工资源有效利用国家重点实验室,北京100029 [2]延边大学化工系,吉林延吉133002

出　　处：《化工学报》

基　　金：国家自然科学基金项目(50573006).~~

年　　份：2006

卷　　号：57

期　　号：6

起止页码：1486-1489

语　　种：中文

收录情况：AJ、BDHX、BDHX2004、CAS、CSCD、CSCD2011_2012、EI(收录号：20063310071007)、IC、JST、RCCSE、SCOPUS、ZGKJHX、核心刊

摘　　要：A SBA-16-type mesoporous silica material was synthesized under a moderately acidic condition of 0.5 mol·L -1 HCl solution.These mesoporous materials were characterized with X-ray diffraction(XRD)pattern,scanning electron microscopy(SEM),transmission electron microscopy(TEM),and nitrogen adsorption-desorption measurements.The three-dimensional microporosity of the prepared mesoporous silica having ordered hexagonal mesoporous structure was evidenced by the well-defined XRD patterns combined with TEM photographs.SEM observation showed a highly ordered cubic crystal structure for the prepared mesoporous silica.The size of these crystallites was maintained within the range of 4—6 μm,which is fairly important for the application to the stationary phase for separation.The nitrogen adsorption-desorption analysis revealed that the prepared mesoporous silica possessed a small pore diameter of 3.68 nm,a total surface area of 363.65 m2·g -1 ,a total pore volume of 0.38 cm3·g -1 ,and a pore-wall thickness of 6.63 nm.These features may lead to higher thermal and hydrothermal stability,excellent microporosity,and good connectivity.The mesoporous silica prepared in this study exhibited potential applications to catalysis,sensoring,and separation.

关 键 词：介孔材料 SBA-16  嵌段共聚物 合成  表征  

分 类 号：TQ127.2]