%0 Journal Article
%T Role of surfactant on dispersing nanospherical MCM-41 mesoporous molecular sieves<br>表面活性剂对纳米MCM-41分子筛分散性的影响
%A LIANG Yan
%A ZHANG Junqi
%A ZHANG Jinsong
%A <br>梁艳
%A 张军旗
%A 张劲松
%J 材料研究学报
%D 2005
%I 
%X Using polymer PEG as dispersant, cetyltrimethylammonium bromide (CTAB) as template and tetraethylorthosilicate(TEOS) as silica source, the monodisperse nanospherical MCM-41 mesoporous molecular sieves with the particle size of 40-60 nm were synthesized under basic media conditions. The influence of the PEG concentration on mesoporous structure and the dispersion of nanospheres were systemically studied. It showed that the morphology of particles changed little, but the dispersion of particles improved greatly. When polymer PEG was added, the mesoporous structure of samples including hexagonal order and the pore size changed. The samples still show perfect long-range order of hexagonal mesoporous structures. With the concentrations of PEG increased, the d100 values of samples in the XRD patterns enlarge. With the suitable PEG concentration, the monodispersenanospherical MCM-41 mesoporous molecular sieves with uniform diameters, single-pore distribution, huge pore volume. huge surface area and highly ordered mesoporous structure could be obtained.
%K inorganic non-metallic materials
%K nanosized MCM-41mesoporous molecular sieve
%K monodisperse
%K PEG<br>无机非金属材料
%K 纳米MCM-41分子筛
%K 单分散
%K 聚乙二醇
%K 表面活性剂
%K 纳米颗粒
%K 分子筛
%K 分散性
%K 影响
%K mesoporous
%K molecular
%K sieves
%K dispersing
%K surfactant
%K 孔隙率
%K 孔径
%K 比表面积
%K 晶面间距
%K 加入量
%K 六方孔
%K 范围
%K 变化
%K 发生
%K 尺寸
%K 有序性
%K 六方结构
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=C101C4C04993B4D94FCD8446E6CBEB3B&aid=24FF4DAD7D1988A2&yid=2DD7160C83D0ACED&vid=2A8D03AD8076A2E3&iid=CA4FD0336C81A37A&sid=EA389574707BDED3&eid=DB817633AA4F79B9&journal_id=1005-3093&journal_name=材料研究学报&referenced_num=3&reference_num=19