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Homogeneous forced hydrolysis of aluminum through the thermal decomposition of urea

Vogels, R.J.M.J., Kloprogge, J. Theo, & Geus, John W. (2005) Homogeneous forced hydrolysis of aluminum through the thermal decomposition of urea. Journal of Colloid and Interface Science, 285(1), pp. 86-93.

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Abstract

Homogeneous hydrolysis of aluminum by decomposition of urea in solution was achieved because the urea coordinates to the Al3+ in solution, forming [Al(H2O)5(urea)]3+ and to a lesser extent [Al(H2O)4(urea)2]3+. Upon hydrolysis more hydrolyzed monomeric species, [Al(H2O)5(OH)]2+, [Al(H2O)4(OH)2]+, [Al(H2O)4(urea)(OH)]2+, and [Al(H2O)3(urea)(OH)2]+, were formed, followed by trimeric species and the Al13 Keggin complex [AlO4Al12(OH)24(H2O)12]7+. The 27Al NMR spectra indicated the formation of other complexes in addition to the Al13 at the end of the hydrolysis reaction.

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24 citations in Scopus
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20 citations in Web of Science®

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ID Code: 1276
Item Type: Journal Article
Keywords: Al13, Keggin structure, Hydrolysis, Nuclear magnetic resonance spectroscopy, Urea
DOI: 10.1016/j.jcis.2004.11.045
ISSN: 0021-9797
Subjects: Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > INORGANIC CHEMISTRY (030200)
Divisions: Past > QUT Faculties & Divisions > Faculty of Science and Technology
Copyright Owner: Copyright 2005 Elsevier
Copyright Statement: Reproduced in accordance with the copyright policy of the publisher.
Deposited On: 18 Oct 2005
Last Modified: 09 Jun 2010 22:24

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