TY - JOUR
T1 - Synthesis and characterization of ordered mesoporous carbon/silica hybrid thin films
AU - Wang, Xiaoxian
AU - Li, Tiehu
AU - Lin, Qilang
AU - Wang, Dawei
AU - Zhao, Tingkai
PY - 2008
Y1 - 2008
N2 - 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.
AB - 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.
KW - Coating
KW - Nanocomposites
KW - Support
KW - Thin films
UR - http://www.scopus.com/inward/record.url?scp=51149094779&partnerID=8YFLogxK
U2 - 10.2202/1542-6580.1764
DO - 10.2202/1542-6580.1764
M3 - 文章
AN - SCOPUS:51149094779
SN - 1542-6580
VL - 6
JO - International Journal of Chemical Reactor Engineering
JF - International Journal of Chemical Reactor Engineering
M1 - A68
ER -