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International Journal of Chemical Reactor Engineering

Ed. by de Lasa, Hugo / Xu, Charles Chunbao

1 Issue per year

IMPACT FACTOR 2013: 0.584

Synthesis and Characterization of Ordered Mesoporous Carbon/Silica Hybrid Thin Films

Xiaoxian Wang1 / Tiehu Li2 / Qilang Lin3 / Dawei Wang4 / Tingkai Zhao5

1Northwestern Polytechnical University,

2Northwestern Polytechnical University,

3Fuzhou University,

4Northwestern Polytechnical University,

5Northwestern Polytechnical University,

Citation Information: International Journal of Chemical Reactor Engineering. Volume 6, Issue 1, ISSN (Online) 1542-6580, DOI: 10.2202/1542-6580.1764, August 2008

Publication History

Published Online:

Carbon/silica nanocomposite films with a hexagonal P6mm structure were fabricated directly by the oxidation and carbonization of surfactant/silica nanocomposite films, which were obtained by a dip-coating technique through a combination of sol-gel and evaporation-induced self-assembly. The as-synthesized nanocomposite films were characterized by scanning electron microscopy, X-ray diffraction, transmission electron microscopy and N2 adsorption-desorption. These analyses reveal that the carbon/silica nanocomposite films, with a narrow pore size distribution of mesopores, have an ordered symmetric structure. The pore sizes of this hybrid film can be controlled within a certain range by changing the carbonization temperature. In addition, the films are composed of a continuous silica matrix and a continuous carbon coating in about 1 nm adhered well to the silica matrix. The formation of carbon coatings from surfactant acts as a framework support to prevent the pore size of the silica matrix from shrinking.

Keywords: nanocomposites; coating; thin films; support

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