Premium
Synthesis and Mechanistic Studies of Sulfated Meso‐ and Microporous Zirconias with Chelating Carboxylate Surfactants
Author(s) -
Antonelli David M.
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(199904)11:6<487::aid-adma487>3.0.co;2-2
Subject(s) - materials science , microporous material , calcination , mesoporous material , carboxylate , catalysis , polymer , molecular sieve , template , oxide , chelation , condensation , ligand (biochemistry) , sulfation , transition metal , chemical engineering , organic chemistry , nanotechnology , chemistry , biochemistry , metallurgy , composite material , physics , receptor , engineering , thermodynamics
Ligand‐assisted templating with carboxylate surfactants is used to produce micro‐ and mesoporous zirconias in a method where the organic template can be removed with a simple acid treatment obviating the usual harsh calcination conditions required to remove templates from transition metal oxide molecular sieves. A new mechanism is proposed for the mesostructure formation, in which the self‐assembly step and the condensation step occur simultaneously with polymer propagation. Applications in shape‐selective catalysis are envisaged.