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Synthesis and thermal stability of hydrotalcites containing manganese

Frost, Ray L., Palmer, Sara J., & Grand, Laure-Marie (2010) Synthesis and thermal stability of hydrotalcites containing manganese. Journal of Thermal Analysis and Calorimetry, 100(3), pp. 981-985.

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Abstract

The hydrotalcite based upon manganese known as charmarite Mn4Al2(OH)12CO3•3H2O has been synthesised with different Mn/Al ratios from 4:1 to 2:1. Impurities of manganese oxide, rhodochrosite and bayerite at low concentrations were also produced during the synthesis. The thermal stability of charmarite was investigated using thermogravimetry. The manganese hydrotalcite decomposed in stages with mass loss steps at 211, 305 and 793°C. The product of the thermal decomposition was amorphous material mixed with manganese oxide. A comparison is made with the thermal decomposition of the Mg/Al hydrotalcite. It is concluded that the synthetic charmarite is slightly less stable than hydrotalcite.

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10 citations in Web of Science®

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ID Code: 32436
Item Type: Journal Article
Additional URLs:
Keywords: charmarite, rhodochrosite, hydrotalcite, hydrocalumite, synthesis, thermal stability
DOI: 10.1007/s10973-009-0402-z
ISSN: 1388-6150
Subjects: Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > PHYSICAL CHEMISTRY (INCL. STRUCTURAL) (030600) > Colloid and Surface Chemistry (030603)
Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > PHYSICAL CHEMISTRY (INCL. STRUCTURAL) (030600)
Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > PHYSICAL CHEMISTRY (INCL. STRUCTURAL) (030600) > Structural Chemistry and Spectroscopy (030606)
Divisions: Past > Schools > Chemistry
Past > QUT Faculties & Divisions > Faculty of Science and Technology
Copyright Owner: Copyright 2010 Akadémiai Kiadó/Springer Science+Business Media B.V.
Copyright Statement: The original publication is available at www.springerlink.com
Deposited On: 31 May 2010 14:40
Last Modified: 06 May 2014 09:45

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