Aoun, Montaha and Guillemet, Sophie
and Lemaître, Jacques and Jones, Alan
Investigation of nucleation and crystal growth kinetics of nickel manganese oxalates.
(2005)
Journal of Crystal Growth, 2. 531-539. ISSN 0022-0248
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(Document in English)
PDF (Author's version) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader 440kB |
Official URL: http://dx.doi.org/10.1016/j.jcrysgro.2005.02.032
Abstract
The nucleation and the crystal growth rates of mixed nickel manganese oxalates have been determined from the changes of the ionic concentration of the solution and the crystal size distribution during the precipitation process within a supersaturation range 0–0.1 M. Thermodynamic solubility calculations have been used to identify the different species contributing the precipitation reaction and for estimation of the thermodynamic constant. Experimental data show that the nucleation rate of mixed nickel manganese oxalate in this supersaturation range is consistent with a primary heterogeneous mechanism and was found to obey to an exponential law. The crystal growth rates indicate a surface-integration-controlled mechanism with a first-order law with respect to the supersaturation.
Item Type: | Article |
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HAL Id: | hal-03601588 |
Audience (journal): | International peer-reviewed journal |
Uncontrolled Keywords: | |
Institution: | Other partners > University College of London - UCL (UNITED KINGDOM) Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE) Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE) French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE) Other partners > Ecole Polytechnique Fédérale de Lausanne - EPFL (SWITZERLAND) |
Laboratory name: | Centre Interuniversitaire de Recherche et d'Ingénierie des Matériaux - CIRIMAT (Toulouse, France) - Equipe Phosphates, Pharmacotechnie, Biomatériaux Laboratoire de technologie des poudres (Lausanne, Switzerland) |
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Deposited On: | 14 May 2008 07:01 |
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