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Reduction electrocatalytique de l'oxygene sur electrodes solides d'oxydes mixtes contenant des ions manganese. II. Rôle du couple Mn3+-Mn4+en sites octaédriques

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Résumé

On montre, en étudiant la réduction électrochimique de l'oxygène sur les manganites de nickel dopés en cuivre, Ni1-x Cu x Mn2O4, que lélectrocatalyse se produit par adsorption sur des sites actifs constitués par des ions Mn4+ associés, en sites octaédriques, à des ions Mn3+.

Abstract

It is demonstrated through the example of the electrochemical reduction of oxygen on nickel manganites doped with copper, Ni1-x Cu x Mn2O4, that the electrocatalysis occurs through adsorption on active sites formed by Mn4+ ions associated, in octahedral sites, with Mn3+ ions.

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Author notes

  1. P. Chartier

    Present address: Laboratoire de Chimie Physique et Energétique Electrochimique, Département de Chimie, Faculté des Sciences, Université de Dakar, Dakar-Fann, Sénégal

Authors and Affiliations

  1. Laboratoire d'Electrochimie et de Chimie Physique du Corps Solide, E.R.A. au C.N.R.S. no. 468, Université Louis Pasteur, 4, rue B. Pascal, 67000, Strasbourg, France

    H. Nguyen Cong, P. Chartier & J. Brenet

Authors
  1. H. Nguyen Cong
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  2. P. Chartier
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  3. J. Brenet
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Nguyen Cong, H., Chartier, P. & Brenet, J. Reduction electrocatalytique de l'oxygene sur electrodes solides d'oxydes mixtes contenant des ions manganese. II. Rôle du couple Mn3+-Mn4+en sites octaédriques. J Appl Electrochem 7, 395–406 (1977). https://doi.org/10.1007/BF00615944

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  • DOI: https://doi.org/10.1007/BF00615944

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