Synthesis and characterization of mesoporous alumina materials with large pore size prepared by a double hydrolysis route

• Published in: Microporous and mesoporous materials Vol. 119; no. 1; pp. 245 - 251
• Main Authors: Lesaint, Cédric, Kleppa, Gøril, Arla, David, Glomm, Wilhelm R., Øye, Gisle
• Format: Journal Article
• Language: English
• Published: San Diego, CA Elsevier Inc 01.03.2009; Elsevier
• Subjects: Alumina; Catalysis; Chemistry; Colloidal state and disperse state; Exact sciences and technology; General and physical chemistry; Large pore size; Mechanism of formation; Mesoporous; Micelles. Thin films; N 2 adsorption–desorption; Porous materials; Surface physical chemistry; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry; Large pore size; Mechanism of formation; Mesoporous; Alumina; N 2 adsorption–desorption; Binary compound; Catalytic reaction; Fischer Tropsch synthesis; Micelle; Desorption; Potential; Surfactant; Porous material; Mechanism; Mesoporosity; Characterization; Hydrolysis; N2 adsorption-desorption; Pore size; Synthesis; Adsorption; Catalysis; Aggregate; Hydrodesulfurization
• ISSN: 1387-1811; 1873-3093
• DOI: 10.1016/j.micromeso.2008.10.022

Large mesoporous aluminas have been prepared by mixing two oppositely charged alumina sources in the presence of surfactants in aqueous media. The resulting materials showed a disordered mesostructure with large mesoporous frameworks. Herein, an alternative mechanism of formation is proposed which does not presume exact knowledge of how the presence of micellar aggregates affects the final architecture of the material. The structural properties obtained are very interesting for potential applications in catalysis, such as Fischer–Tropsch synthesis, hydrodesulfurization and hydrodechlorination.