Homogeneous forced hydrolysis of aluminum through the thermal decomposition of urea

Vogels, R.J.M.J. and Kloprogge, J. Theo and 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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DOI : 10.1016/j.jcis.2004.11.045

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.

ID Code:	1276
Item Type:	Journal Article
Keywords :	Al13, Keggin structure, Hydrolysis, Nuclear magnetic resonance spectroscopy, Urea
ISSN:	0021-9797
Subjects:	Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > INORGANIC CHEMISTRY (030200)
Divisions:	QUT Faculties and Divisions > Faculty of Science
Copyright Owner :	Copyright 2005 Elsevier
Copyright Statement :	Reproduced in accordance with the copyright policy of the publisher.
Deposited On:	18 Oct 2005
Last Modified:	03 Dec 2008 12:28

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