以含模板剂的中孔MCM-41为模板合成类碳纳米管材料  

Preparation of a carbon nanotube analog from surfactant-containing MCM-41 silica

作　　者：刘献斌[1] 刘中民[1] 常福祥[1] 曲丽红[1] 桑石云[1] 张阳阳[1] 

机构地区：[1]中国科学院大连化学物理研究所

出　　处：《新型炭材料》2006年第3期237-242,共6页New Carbon Materials

摘　　要：以占据MCM-41中孔孔道的表面活性剂—十六烷基三甲基溴化铵(Cety ltrim ety lamm onium brom ide,CTAB)作为碳源,通过模板法合成类碳纳米管材料。使用X射线衍射仪(XRD),N2物理吸附,透射电镜(TEM)和热重分析(TGA)对产品的结构和性能进行了表征。研究表明:此方法能够简便地制备出一种无定形结构的类碳纳米管材料,其中浓硫酸预处理是制备的关键步骤。A carbon nanotube analog was prepared using the structure-directing agent cetyltrimetylammonium bromide locked in the channels of MCM-41 as a carbon source. The structures and properties of the resulting samples were characterized by powder XRD, nitrogen adsorption-desorption measurement, TEM and TGA. It was found that the carbon nanotube analog obtained by this method is amorphous. Pretreatment with concentrated sulfuric acid is a key step in its formation.

关 键 词：MCM-41 模板 类碳纳米管 

分 类 号：TB383.1[一般工业技术—材料科学与工程]