Ouahdi, N. and Guillemet, S and Demai, J. J. and Durand, B and Rakho, L. Er and Moussa, R and Samdi, A (2005) Investigation of the reactivity of AlCl3 and CoCl2 toward molten alkali-metal nitrates in order to synthesize CoAl2O4. Materials Letters, 59 (2-3). 334 - 340.
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Official URL: http://www.sciencedirect.com/science/article/B6TX9...
Abstract
Cobalt aluminate CoAl2O4 powder, constituted of nano-sized crystallites, is prepared, involving the reactivity of AlCl3 and CoCl2 with molten alkali-metal nitrates. The reaction at 450 °C for 2 h leads to a mixture of spinel oxide Co3O4 and amorphous γ-Al2O3. It is transformed into the spinel oxide CoAl2O4 by heating at 1000 °C. The powders are mainly characterized by XRD, FTIR, ICP, electron microscopy and diffraction, X-EDS and diffuse reflection. Their properties are compared to those of powders obtained by solid state reactions of a mechanical mixture of chlorides or oxides submitted to the same thermal treatment.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Electron microscopy |
| Subjects: | Material Science > Nanofabrication processes and tools Material Science > Nanostructured materials Material Science > Nanochemistry |
| ID Code: | 4190 |
| Deposited By: | SPI |
| Deposited On: | 09 Feb 2009 15:25 |
| Last Modified: | 19 Feb 2009 17:22 |
Available Versions of this Item
- Investigation of the reactivity of AlCl3 and CoCl2 toward molten alkali-metal nitrates in order to synthesize CoAl2O4. (deposited 27 Jan 2009 09:55)
- Investigation of the reactivity of AlCl3 and CoCl2 toward molten alkali-metal nitrates in order to synthesize CoAl2O4. (deposited 09 Feb 2009 15:28)
- Investigation of the reactivity of AlCl3 and CoCl2 toward molten alkali-metal nitrates in order to synthesize CoAl2O4. (deposited 09 Feb 2009 15:25) [Currently Displayed]
- Investigation of the reactivity of AlCl3 and CoCl2 toward molten alkali-metal nitrates in order to synthesize CoAl2O4. (deposited 09 Feb 2009 15:28)
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