preparationofacarbonnanotubeanalogfromsurfactantcontainingmcm41silica

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