Free Access
| Issue |
J. Phys. IV France
Volume 11, Number PR10, Décembre 2001
Journées d'Étude des Équilibres entre Phases
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| Page(s) | Pr10-99 - Pr10-102 | |
| DOI | https://doi.org/10.1051/jp4:20011013 | |
Journées d'Étude des Équilibres entre Phases
J. Phys. IV France 11 (2001) Pr10-99-Pr10-102
DOI: 10.1051/jp4:20011013
1 LAIMAM, Université de Savoie, 9 rue de l'Arc-en-Ciel, BP. 240, 74942 Annecy-le-Vieux cedex, France
2 Université du Bénin, BP. 418, Lomé, Togo
© EDP Sciences 2001
J. Phys. IV France 11 (2001) Pr10-99-Pr10-102
DOI: 10.1051/jp4:20011013
The Ca0.80CuO1.93 phase : New way of synthesis by the sol-gel method
S. Phok1, T.K. Jondo2, Ph. Galez1 and J.L. Jorda11 LAIMAM, Université de Savoie, 9 rue de l'Arc-en-Ciel, BP. 240, 74942 Annecy-le-Vieux cedex, France
2 Université du Bénin, BP. 418, Lomé, Togo
Abstract
We report on the reaction kinetics for the Ca0.80CuO1.93 phase prepared by the sol-gel method using acrylamide for gelification. The phase was prepared 95% pure after a 2 hour treatment at 800°C. Comparative stability under vacuum and oxygen has been determined. The kinetics parameters for the decomposition have been established : the activation energy is Ea= 626 kJ/mol and the pseudo reaction order n = 0.5.
© EDP Sciences 2001