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Surfactant‐Assisted Synthesis of Mesoporous Alumina Showing Continuously Adjustable Pore Sizes
Author(s) -
Cabrera Saúl,
Haskouri Jamal El,
Alamo Jaime,
Beltrán Aurelio,
Beltrán Daniel,
Mendioroz Sagrario,
Marcos M. Dolores,
Amorós Pedro
Publication year - 1999
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/(sici)1521-4095(199903)11:5<379::aid-adma379>3.0.co;2-6
Subject(s) - materials science , pulmonary surfactant , mesoporous material , chemical engineering , nanotechnology , composite material , organic chemistry , catalysis , chemistry , engineering
Alumina molecular sieves with continuously adjustable pore sizes are achieved by use of cationic surfactant‐assisted synthesis, a technique which is reported for the first time. The “hydrolysis‐retarding” role played by triethanolamine allows control of the competition between aluminum hydrolysis/condensation reactions and organic‐inorganic self‐assembling processes. This leads to thermally stable mesoporous alumina molecular sieves, whose pore size can then be tuned by the adjustment of the molar ratio of the reactants.