摘要
以离子液体1-十六烷基-3-甲基溴代咪唑为模板剂合成了Al-MSU-S-Y介孔分子筛,利用XRD、N2吸附-脱附对其进行结构表征,结果表明该方法合成的样品具有较大的孔径、孔容以及比表面积,而且孔径分布较窄.研究了Al-MSU-S-Y对乙二醇与环己酮、丁酮、丙酮、丙醛、丁醛、异丁醛、戊醛、异戊醛、正己醛、正辛醛、苯甲醛等十余种醛(酮)的缩合反应的催化性能,结果表明Al-MSU-S-Y介孔分子筛对醛(酮)与醇的缩合反应有较好的催化性能.
Mesoporous molecular sieves Al-MSU-S has been prepared from the precursor of Y zeolite using 1-hexadecane-3-methyl-imidazolium bromide (CMIMB) as a template in basic medium, which exhibited larger pore diameter, pore volume and surface area. The catalytic activity of Al-MSU-S-Y was studied via the acetalization and ketalization of different aldehydes and ketones with glycol. Results showed that it was an efficient catalyst for the synthesis of acetals (ketals).
出处
《分子催化》
EI
CAS
CSCD
北大核心
2007年第5期391-395,共5页
Journal of Molecular Catalysis(China)
基金
国家自然科学基金
G2000048-6
上海科学技术发展基金
No.03DJ14005