Preparation of sulfated alumina supported on mesoporous MCM-41 silica and its application in esterification
Preparation of sulfated alumina supported on mesoporous MCM-41 silica and its application in esterification
复制标题
介孔MCM-41二氧化硅负载硫酸化氧化铝的制备及其在酯化反应中的应用
DOI：
10.1016/j.catcom.2013.02.007
复制
发表时间：
2013-05-05
影响因子：
3.7
通讯作者：
Wu, Xiuling
中科院分区：
文献类型：
--
作者：
Pan, Hui;Wang, Junxia;Wu, Xiuling
将硫酸化氧化铝（SA）负载到MCM-41上，制备了新型的中孔SA/MCM-41固体酸催化剂。采用XRD、IR、N2物理吸附、元素分析、吸附吡啶的FT-IR和NH3-TPD等手段对催化剂进行了表征。以乙酸与正丁醇、柠檬酸与正丁醇的酯化反应为模型反应，考察了SA/MCM-41固体酸催化剂的催化活性和重复使用性能。与SA催化剂相比，SA/MCM-41催化剂具有更高的比表面积和孔容，从而具有更好的催化性能。此外，20 SA/MCM-41固体酸催化剂在两种反应中均表现出良好的重复使用性。(C)2013爱思唯尔有限公司版权所有。
New types of mesoporous SA/MCM-41 solid acid catalysts were prepared by loading sulfated alumina (SA) on MCM-41. The prepared catalysts were characterized by XRD, IR, N-2 physisorption, elemental analysis, FT-IR of adsorbed pyridine and NH3-TPD. The esterification of acetic acid with n-butanol and citric acid with n-butanol were used as model reactions to test the catalytic activities and reusability of the SA/MCM-41 solid acid catalysts. Compared with SA catalyst, SA/MCM-41 catalysts exhibited higher catalytic performances, which were attributed to their high BET surface area and large pore volume. Moreover, 20SA/MCM-41 solid acid catalyst showed excellent reusability in both esterifications. (C) 2013 Elsevier B.V. All rights reserved.