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Synthesis of Mesoporous Zirconia Using an Amphoteric Surfactant

Published online by Cambridge University Press:  10 February 2011

A. Y. Kim ,
P. J. Bruinsma ,
Y. L. Chen  and
J. Liu
A. Y. Kim
Affiliation:
Pacific Northwest National Laboratory*, Battelle Boulevard, P.O. Box 999, Richland, WA 99352
P. J. Bruinsma
Affiliation:
Pacific Northwest National Laboratory*, Battelle Boulevard, P.O. Box 999, Richland, WA 99352
Y. L. Chen
Affiliation:
Pacific Northwest National Laboratory*, Battelle Boulevard, P.O. Box 999, Richland, WA 99352
J. Liu
Affiliation:
Pacific Northwest National Laboratory*, Battelle Boulevard, P.O. Box 999, Richland, WA 99352
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Abstract

An amphoteric surfactant, cocamidopropyl betaine, was used for the synthesis of mesoporous zirconia. The carboxylate functionality of the surfactant permitted strong bonding with soluble zirconium species, while the quaternary ammonium group ensured large headgroup area and high solubility under acidic conditions. An amphoteric co-template [betaine, or (carboxymethyl)trimethylammonium hydroxide] improved uniformity of the hexagonal mesophase. Transmission electron microscopy (TEM) of the as-synthesized zirconium sulfate mesophase indicated hexagonal mesostructure, and low-angle X-ray diffraction (XRD) showed a 41 Å primary d-spacing and two higher order reflections of a hexagonal lattice. High surface area zirconia was produced by controlled base treatment of the hexagonal mesophase with sodium hydroxide, followed by calcination. TEM and XRD indicated that the mesostructure was stable to 350°C.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 435: Symposium V – Better Ceramics Through Chemistry VII , 1996 , 131
Copyright
Copyright © Materials Research Society 1996

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