Versatile fabrication of distorted cubic mesoporous silica film using CTAB together with a hydrophobic organic additive.
We have succeeded in the fabrication of distorted cubic R-3m mesoporous silica film with 3D open mesostructure providing high pore accessibility from the surface-air interface of the film. The film fabrication involves a unique approach of adding 1,3,5- triisopropylbenzene (TIPB) to the silica/cetyltrimethylammoniumbromide (CTAB) coating sol during its preparation. The addition of TIPB induces the formation of spheroid micelles, promoting R-3m mesostructure in the film. This phase does not exist in the corresponding binary phase diagram of CTAB surfactant.
Naik
Sajo P
SP
Department of Chemical System Engineering, The University of Tokyo, PRESTO, JST, Bunkyo-ku, Japan.
Yokoi
Toshiyuki
T
Fan
Wei
W
Sasaki
Yukichi
Y
Wei
Ta-chen
TC
Hillhouse
Hugh W
HW
Okubo
Tatsuya
T