Synthesis and thermal stability of hydrotalcites containing manganese

Grand, Laure-Marie, , & (2010) Synthesis and thermal stability of hydrotalcites containing manganese. Journal of Thermal Analysis and Calorimetry, 100(3), Article number: CTAS 981-985.

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Description

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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17 citations in Scopus
17 citations in Web of Science®
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ID Code: 32436
Item Type: Contribution to Journal (Journal Article)
Refereed: Yes
ORCID iD:
Palmer, Saraorcid.org/0000-0002-4296-4153
Measurements or Duration: 5 pages
Keywords: Charmarite, Hydrocalumite, Hydrotalcite, Rhodochrosite, Synthesis, Thermal stability
DOI: 10.1007/s10973-009-0402-z
ISSN: 1388-6150
Pure ID: 32201584
Divisions: Past > QUT Faculties & Divisions > Faculty of Science and Technology
Past > QUT Faculties & Divisions > Science & Engineering Faculty
Current > Research Centres > Australian Research Centre for Aerospace Automation
Copyright Owner: Consult author(s) regarding copyright matters
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Deposited On: 31 May 2010 04:40
Last Modified: 01 Apr 2024 07:31