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Machefaux, E., Verbaere, A. & Guyomard, D. (2007) Aluminum substituted manganese oxides for lithium battery applications. J. Power Sources, 165 625–629. 
Added by: Laurent Cournède (2016-03-10 22:02:30)
Type de référence: Article
DOI: 10.1016/j.jpowsour.2006.10.030
Numéro d'identification (ISBN etc.): 0378-7753
Clé BibTeX: Machefaux2007
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Catégories: ST2E
Mots-clés: alpha, aluminum substitution, beta, electrochemical synthesis, gamma-mno2, insertion behavior, li batteries, Manganese dioxides, nanowires, structural defects
Créateurs: Guyomard, Machefaux, Verbaere
Collection: J. Power Sources
Consultations : 1/608
Indice de consultation : 4%
Indice de popularité : 1%
Résumé     
Using the electrochemical-hydrothermal method, Al-substituted MnO2 materials with alpha- or gamma-structures or mixtures of these phases have been synthesized. The Al-substituted materials are highly disordered and are characterized by a large amount of microtwinning defects compared to non substituted ones synthesized under the same conditions. The effect of the presence of aluminum on the physico-chemical, structural and morphological properties are presented. The presence of Al-III allows obtaining "interconnected nanowires" of Mn1-yAlyO2-delta with very high surface areas. The lithium insertion properties of the Al-substituted gamma-MnO2 materials are discussed by comparison to non substituted ones. (c) 2006 Elsevier B.V. All rights reserved.
Added by: Laurent Cournède  
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