Highly stable mesoporous metal oxides using nano-propping hybrid gemini surfactants.
Noble Gemini surfactants containing a siloxane moiety have been designed and successfully synthesized in the present study and are utilized as structure-directing agents for mesoporous metal oxides such as zirconia, titania, and vanadia. The siloxane moiety is believed to play an important nano-propping role during the surfactant removal by direct calcination, yielding thermally stable mesoporous metal oxides. It is also believed that the synthesis strategy described here can be applied to the synthesis of robust nanostructured materials such as nanoparticles and nanorods in addition to mesoporous materials.
Lyu
Yi-Yeol
YY
Electronic Materials Laboratory, Samsung Advanced Institute of Technology, P.O. Box 111, Suwon, 440-600, Korea.
Yi
Seung Hwan
SH
Shon
Jeong Kuk
JK
Chang
Seok
S
Pu
Lyong Sun
LS
Lee
Sang-Yun
SY
Yie
Jae Eui
JE
Char
Kookheon
K
Stucky
Galen D
GD
Kim
Ji Man
JM