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Kai, K., Cuisinier, M., Yoshida, Y., Saito, G., Kobayashi, Y. & Kageyama, H. (2012) One-pot synthesis of co-substituted manganese oxide nanosheets and physical properties of lamellar aggregates. Mater. Res. Bull. 47 3855–3859.
Added by: Laurent Cournède (2016-03-10 21:28:38) |
| Type de référence: Article DOI: 10.1016/j.materresbull.2012.08.008 Numéro d'identification (ISBN etc.): 0025-5408 Clé BibTeX: Kai2012 Voir tous les détails bibliographiques  |
Catégories: ST2E Mots-clés: Ceramics, Chemical synthesis, delamination, Electrochemical properties, exfoliated nanosheets, ions, Layered compounds, mno2 nanosheets, perovskites, sheets, thin films, Titanate, X-ray diffraction Créateurs: Cuisinier, Kageyama, Kai, Kobayashi, Saito, Yoshida Collection: Mater. Res. Bull. |
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| Résumé |
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Co-substituted manganese oxide nanosheets, (Mn1-xCox)O-2 have been synthesized in the form of a colloidal suspension via a simple one-pot method. Substitution effects on the structural, optical absorption, and magnetic properties are investigated for the nanosheets and their lamellar aggregates. The composition of the (Mn1-xCox)O-2 nanosheets can be controlled continuously by adjusting the molar ratio of the starting materials. The solubility limit is x similar to 0.20 based on the cell volume. In the 0.00 {<}= x {<}= 0.20 range, the band gap energy, magnetic moment, and Weiss temperature change systematically with x. The charge density of the (Mn,Co)O-2 layer is independent of x (i.e., [(Mn,Co)O-2](0.2-)) and the cobalt ions are trivalent in low-spin state. (c) 2012 Elsevier Ltd. All rights reserved.
Added by: Laurent Cournède |