(163bc) Precise Particle Size Control of Large Pore Mesoporous Silica in Nanoscale

Since the first report of M41s by Mobil researchers, the synthesis of periodic mesoporous silicas via supra-molecular assembly and sol-gel reaction has been highly active research field due to the high surface area and regular mesopores exhibiting potential applications. Mesostructural, compositional and morphological control has been the main interest in the synthesis of mesoporous silica materials. Particularly, the morphological control has been understood as one of the most important mater for material design related to the targeted applications. For example, small and fine particles of mesoporous support can be very beneficial in catalytic reactions due to the high accessibility of the mesopores. In the presentation, a facile route for the synthesis of well ordered mesoporous silica with controlled particle size in nano scale by means of systematic pH adjustment will be presented. FESEM, HRTEM, XRD, N2 sorption were used for the characterization.