Abstract
Silica/carbon nanocomposites were prepared by direct carbonization of as-synthesized FDU-1 materials, which are mesoporous silicas with ordered 3D cage-like structures. These nanocomposites were synthesized by using poly(ethylene oxide)-poly(butylene oxide)-poly(ethylene oxide) triblock copolymer as template and tetraethyl orthosilicate as silica source in the aqueous phase containing sulfuric acid, which acted as catalyst during carbonization process. The resulting silica/carbon nanocomposites and corresponding FDU-1 materials were characterized by argon adsorption at −196°C, thermogravimetric analysis and small angle X-ray scattering. Typically, about 20% of the template from as-synthesized material was converted into carbon, which constitutes about 8% of the total mass of the final nanocomposite.
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