文献类型：期刊文章

作　　者：闰明涛[1,2] 吴刚[1]

机构地区：[1]北京化工大学材料科学与工程学院,北京市新型高分子材料制备与加工重点实验室,北京100029 [2]河北大学化学与环境科学学院,保定071002

出　　处：《无机化学学报》

基　　金：中石化科技基金资助项目(No.X503013)。

年　　份：2004

卷　　号：20

期　　号：2

起止页码：219-224

语　　种：中文

收录情况：BDHX、BDHX2000、CAS、CSCD、CSCD2011_2012、IC、JST、RCCSE、RSC、SCI-EXPANDED(收录号：WOS:000188044800021)、SCIE、SCOPUS、WOS、ZGKJHX、核心刊

摘　　要：Th e synthesis of mesoporous molecular sieve(MMS)abstract:by ultrasonic method was investiga ted under different ultrasonic power and time.The resultant samples were charact erized through measurements of XRD,SEM,TEM,IR,TG,and N 2 adsorption isotherm.Nanometer mesoporous silica analogous to the hexagonal M CM - 41could be obtained over a range of irradiation power above200W within short synthesis time(20min)abstract:and a quiescent time(5h)abstract:.The samples have larger BET surfa ce area and thicker pore wall while its pore size and pore volume are similar to that obtained without ultrasonic.The crystallinity of MMS increase and the size of unit cell reduce as the increasing of ultrasonic power and time.The yield of products increases with the increasing of ultrasonic power.Therefore,ultrasonic irradiation synthesis is a way to save time and energy in preparation of the me so - porous molecular sieve.

关 键 词：超声波 合成  介孔分子筛 结晶度 表征  孔结构

分 类 号：TQ424.25]