以含模板剂的中孔MCM-41为模板合成类碳纳米管材料

以含模板剂的中孔MCM-41为模板合成类碳纳米管材料

  • 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(Cetyltrimetylammonium bromide,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。

     

    Abstract: 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.

     

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