Hydrophobic modification of SO3H-functionalized mesoporous silica and investigations on the enhanced catalytic performance
Hydrophobic modification of SO3H-functionalized mesoporous silica and investigations on the enhanced catalytic performance
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DOI：
10.1016/j.cattod.2014.08.017
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发表时间：
2015-04-01
期刊：
影响因子：
5.3
通讯作者：
Yamashita, Hiromi
中科院分区：
文献类型：
--
作者：
Kamegawa, Takashi;Mizuno, Atsushi;Yamashita, Hiromi
以三乙氧基氟硅烷（TEFS）为硅烷基化试剂，成功地实现了磺酸（SO 3 H）功能化介孔氧化硅（SO 3 H-MS）的疏水化改性。SO 3 H-MS经表面改性后仍保持介孔结构，比表面积大，吸水量降低。在SO_3 H-MS上接枝适量的TEFS可有效地提高固体酸催化剂在傅克烷基化反应中的催化性能。(C)2014爱思唯尔有限公司版权所有。
Hydrophobic modification of sulfonic acid (SO3H)-functionalized mesoporous silica (SO3H-MS) was successfully achieved by the grafting of triethoxyfluorosilane (TEFS) as a silylation reagent. After surface modification, SO3H-MS maintained mesoporous structure with large surface area and exhibited less water adsorption capacity. The grafting of a suitable amount of TEFS on SO3H-MS was effective for improvement of the catalytic performance as a solid acid catalyst in Friedel-Crafts alkylation. (C) 2014 Elsevier B.V. All rights reserved.