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Thermal decomposition of hydrotalcite with hexacyanoferrate(II) and hexacyanoferrate(III) anions in the interlayer

Frost, Ray L., Musumeci, Anthony W., Kloprogge, J. Theo, Weier, Matt L., Adebajo, Moses O., & Martens, Wayde N. (2006) Thermal decomposition of hydrotalcite with hexacyanoferrate(II) and hexacyanoferrate(III) anions in the interlayer. Journal of Thermal Analysis and Calorimetry, 86(1), pp. 205-209.

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Abstract

The thermal decompositions of hydrotalcites with hexacyanoferrate(II) and hexacyanoferrate(III) in the interlayer have been studied using thermogravimetry combined with mass spectrometery. X-ray diffraction shows the hydrotalcites have a d(003) spacing of 11.1 and 10.9 Å which compares with a d-spacing of 7.9 and 7.98 Å for the hydrotalcite with carbonate or sulphate in the interlayer. XRD was also used to determine the products of the thermal decomposition. For the hydrotalcite decomposition the products were MgO, Fe2O3 and a spinel MgAl2O4. Dehydration and dehydroxylation take place in three steps each and the loss of cyanide ions in two steps.

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15 citations in Web of Science®

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ID Code: 5195
Item Type: Journal Article
Keywords: hexacyanoferrate, hydrotalcite, takovite, pyroaurite, thermal analysis
DOI: 10.1007/s10973-005-6933-z
ISSN: 1572-8943
Subjects: Australian and New Zealand Standard Research Classification > PHYSICAL SCIENCES (020000)
Divisions: Past > QUT Faculties & Divisions > Faculty of Science and Technology
Copyright Owner: Copyright 2006 Springer
Copyright Statement: The original publication is available at SpringerLink http://www.springerlink.com
Deposited On: 11 Oct 2006
Last Modified: 29 Feb 2012 23:25

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