| Since the successful synthesis of M41S mesoporous silica materials in 1992, considerable efforts have been directed towards the preparation of mesoporous materials with different chemical compositions. Along with the social and economic developments of our country, the energy-structure and raw materials of chemical industry develop towards heavy carbon and larger molecule, which request to use catalysts with larger surface areas and pore volumes to overcome the negative influence caused by the changes of raw materials structure. As the mostly used supports and catalysts, the synthesis of mesoporous alumina with large surface areas possesses huge values of economy and applications. In the present work, mesoporous alumina has been successfully prepared through two synthesis routes. The structures and properties of these materials have been studied by various techniques such as XRD, TG-DTA, TEM, SEM, physical adsorption and FTIR.The alumina nanotubes have been prepared by using the anionic surfactant, sodium dodecyl sulfonate (SDS), as structure-directing template for the first time via a hydrothermal method. The obtained nanotubes are found having outer diameters from 6 to 8 nm with length up to 200 nm. After calcined at 500℃, the AMA (anionic, mesoporous, alumina) samples are obtained, with surface area of 287.0 m2·g-1 and pore volume of 0.44 cm3·g-1.On the other hand, NMA (neutral, mesoporous, alumina) samples have also...
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