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High‐Temperature Generalized Synthesis of Stable Ordered Mesoporous Silica‐Based Materials by Using Fluorocarbon–Hydrocarbon Surfactant Mixtures
Author(s) -
Han Yu,
Li Defeng,
Zhao Lan,
Song Jiangwei,
Yang Xiaoyu,
Li Nan,
Di Yan,
Li Caijin,
Wu Shuo,
Xu Xianzhu,
Meng Xiangju,
Lin Kaifeng,
Xiao FengShou
Publication year - 2003
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200351466
Subject(s) - fluorocarbon , calcination , pulmonary surfactant , hydrocarbon , mesoporous material , chemical engineering , materials science , mesoporous silica , condensation , template , nanotechnology , organic chemistry , chemistry , composite material , thermodynamics , catalysis , physics , engineering
Highly ordered mesoporous silica materials are hydrothermally synthesized at high temperature by using fluorocarbon–hydrocarbon surfactant mixtures as templates. Because of the high temperature of the synthesis, the obtained materials show complete silica condensation, which give rise to ultra‐stabile structures. JLU‐20 for example (see TEM image of calcined JLU‐20) has a fully condensed mesopore wall with a very high Q 4 /Q 3 ratio of 6.5.