Martins, Leandro [UNESP]Rosa, Marinalva A. Alves [UNESP]Pulcinelli, Sandra Helena [UNESP]Santilli, Celso Valentim [UNESP]2014-05-202014-05-202010-07-01Microporous and Mesoporous Materials. Amsterdam: Elsevier B.V., v. 132, n. 1-2, p. 268-275, 2010.1387-1811http://hdl.handle.net/11449/25323A general and potentially easy method of synthesizing aluminas possessing hierarchical pore structure is presented in this paper. This method is based on the integration of the sol-gel process with micelles of poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) block copolymer and oil droplets of decahydronaftalen (DHN) as dual pore templates. With the addition of n-pentanol as co-surfactant, DHN droplets diameter could be controlled within the range of ca. 2-12 mu m. Mercury intrusion porosimetry shows that the produced alumina ceramics possess hierarchical structure composed of two families of pores, namely, the macro- (from 0.1 to 6 mu m) and mesopores (from 8 to 10 nm). The relative population of each family and the average size of macropores could be easily controlled by adjusting the DHN quantity. (C) 2010 Elsevier B.V. All rights reserved.268-275engMacro-mesoporous aluminasMicelleEmulsionSol-gel and templateArtigo10.1016/j.micromeso.2010.03.006WOS:000277551300034Acesso restrito5782696565602340997120258528696755842986818708650000-0002-8356-8093