title: Various three-dimensional structures connected by Al-O/OH/acetate-Al bonds.
abstract: In the present work, significantly various structures connected by Al-O/OH/acetate-Al bonds were synthesized in a versatile sol-gel route. The various bond systems result in several three-dimensional (e.g., fibrous, highly porous, and compact) macrostructures. The shared acetate and OH ions provide the fibrous character; the shared OH ions and oxygen-bridges between octahedral Al(III) ions assist in the formation of a porous network; and the oxygen-bridges between differently (octa-, tetra-, and pentahedrally) coordinated Al(III) ions characterize the compact structures. The newly developed synthesis route is a fast and low-energy consumption sol-gel technique. This method applies only two starting materials and does not adopt any basic agent or catalyst. The synthesis is fast because it does not require any time-consuming peptization; a 3-D network forms directly from the initial solution. The low energy consumption arises from the low temperature of reactions (80 °C) and heat treatment (400-600 °C).
authors.affiliation: Institute of Chemistry, L. Eötvös University , Budapest, H-1117, Hungary.
authors.forename: Katalin
authors.initials: K
authors.lastname: Sinkó
authors.forename: Shiro
authors.initials: S
authors.lastname: Kubuki
authors.forename: Herwig
authors.initials: H
authors.lastname: Peterlik