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Thermal activation of copper oxide based upon the copper hydrotalcites of the type CuxZn6-xCr2(OH)16(CO3).4H2O

Frost, Ray L. & Ding, Zhe (2003) Thermal activation of copper oxide based upon the copper hydrotalcites of the type CuxZn6-xCr2(OH)16(CO3).4H2O. Thermochimica Acta, 405(2), pp. 207-218.

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Abstract

A combination of DSC and high resolution DTG coupled to a gas evolution mass spectrometer has been used to study the thermal properties of a series of Cu/Zn hydrotalcites of formulae CuxZn6-xAl2(OH)16(CO3).4H2O where x varied from 6 to 0. The effect of increased Zn composition results in the increase of the endotherms and weight loss steps to higher temperatures. Evolved gas mass spectrometry shows that water is lost in a number of steps. The interlayer carbonate anion is lost simultaneously with hydroxyl units. The endotherms and differential weight loss steps were both cation and mole ratio dependent.

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ID Code: 1019
Item Type: Journal Article
Keywords: dehydration, dehydroxylation, hydrotalcite, differential scanning calorimetry, high, resolution thermogravimetric analysis
DOI: 10.1016/S0040-6031(03)00194-1
ISSN: 0040-6031
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 2003 Elsevier
Copyright Statement: Reproduced in accordance with the copyright policy of the publisher.
Deposited On: 13 Apr 2005
Last Modified: 29 Feb 2012 22:59

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