Please use this identifier to cite or link to this item: https://doi.org/10.1007/s10563-008-9048-2
Title: Structural and morphological control in the preparation of high surface area zirconia
Authors: Jaenicke, S. 
Chuah, G.K. 
Raju, V.
Nie, Y.T. 
Keywords: Acid-base catalysis
Digestion
High surface area
Mesoporous
Sol-gel
Zirconia
Issue Date: Sep-2008
Citation: Jaenicke, S., Chuah, G.K., Raju, V., Nie, Y.T. (2008-09). Structural and morphological control in the preparation of high surface area zirconia. Catalysis Surveys from Asia 12 (3) : 153-169. ScholarBank@NUS Repository. https://doi.org/10.1007/s10563-008-9048-2
Abstract: The methods for the formation of zirconia including precipitation from aqueous salts, sol-gel synthesis from zirconium alkoxides, and the templated synthesis using surfactants are described in this review. The surface areas obtained vary widely but invariably decrease upon prolonged calcination. Digestion of hydrous zirconia and incorporation of dopants such as lanthanum, yttrium, or sulfate ions can increase the surface area and thermal stability. However, these methods also affect the crystal phase of zirconia. The transformation from the metastable tetragonal to the monoclinic phase occurs during the cooling phase of calcination. Mechanisms for the stabilization of the tetragonal phase are discussed. Zirconia with well-ordered mesopores or in the form of hollow spheres can be prepared but lack thermal stability, unless doped with phosphates, silicates or sulfates. © Springer Science+Business Media, LLC 2008.
Source Title: Catalysis Surveys from Asia
URI: http://scholarbank.nus.edu.sg/handle/10635/95578
ISSN: 15711013
DOI: 10.1007/s10563-008-9048-2
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