Thermally stable mesoporous alumina synthesized with non-ionic surfactants in the presence of amines

被引:107
作者
González-Peña, V [1 ]
Díaz, I [1 ]
Márquez-Alvarez, C [1 ]
Sastre, E [1 ]
Pérez-Pariente, J [1 ]
机构
[1] CSIC, Inst Catalisis & Petr Quim, Madrid 28049, Spain
关键词
thermal stability; mesoporous alumina; non-ionic surfactants; polyethylene oxide; dipropylamine; transmission electron microscopy;
D O I
10.1016/S1387-1811(01)00185-8
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
Samples of mesoporous aluminas have been obtained from synthesis gels containing non-ionic surfactants in the presence of dipropylamine. Surface area, pore size, d spacing and thermal stability of the aluminas have been found to change as a function of the chemical composition of the gel precursor. After calcination at 873 K, the ordered arrangement of pores is still preserved, and surface areas higher than 300 m(2)g(-1) are obtained. The pore ordering is also observed after calcination at 973 K. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:203 / 210
页数:8
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