文献类型：期刊文献

英文题名：One-step synthesis of micro/mesoporous material templated by CTAB and imidazole ionic liquid in aqueous solution

作者：Hu, Jun;Gao, Feng;Shang, Yazhuo;Peng, Changjun;Liu, Honglai[1];Hu, Ying

机构：[1]E China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China; E China Univ Sci & Technol, Dept Chem, Shanghai 200237, Peoples R China

年份：2011

卷号：142

期号：1

起止页码：268

外文期刊名：MICROPOROUS AND MESOPOROUS MATERIALS

收录：;EI(收录号：20111113758843);WOS:【SCI-EXPANDED(收录号:WOS:000289401900034)】；

基金：This work is supported by the National Natural Science Foundation of China (Nos. 20736002, 20776045), the National High Technology Research and Development Program of China (No. 2003AA062302), National Basic Research Program of China (2009CB219902) and Program for Changjiang Scholars and Innovative Research Team in University of China (No. IRT0721).

语种：英文

外文关键词：Micro/mesoporous material; Micro-phase separation; Imidazole ionic liquid; CTAB; Synergistic interactions

摘要：Based on the micro-phase separation of the dual templates consisting of an alkyl imidazole ionic liquid [C(n)mim]Br and a surfactant cetyltriethylammonium bromide (CTAB), the micro/mesoporous silicate materials were synthesized. At room temperature, the cations [C(4)mim](+) and CTA(+) aggregated into mixed micelles and acted as co-templates for synthesis of mesoporous materials which possessed an extremely large BET surface area of 1719 m(2) g(-1). While at a hydrothermal temperature of 373 K, the mixed micelles separated into CTA(+) mesoscale micelles and [C(4)mim](+) micro scale aggregates which were served as mesoporous templates and microporous templates, respectively. With a total BET surface area of 1016 m(2) g(-1), the resulted materials had distinctly different micropore range and mesopore range of pores of 0.6 and 2.7 nm, respectively. The formation mechanism was tentatively elucidated by studying the interaction between CTAB and [C(4)mim]Br based on the measurement of the cmc of the CTAB/[C(4)mim]Br mixture aqueous solutions at different compositions and temperatures. (C) 2010 Elsevier Inc. All rights reserved.