FOURNÈS, Léopold; WATTIAUX, Alain; DEMOURGUES, Alain; BEZDICKA, Petr; GRENIER, Jean-Claude; POUCHARD, Michel; ETOURNEAU, Jean

doi:10.1051/jp4:19971143

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FOURNÈS, Léopold
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

WATTIAUX, Alain
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

DEMOURGUES, Alain
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

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Journal de Physique IV Proceedings. 1997, vol. 07, n° C1, p. C1-353-C1-354

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The transition-metal perovskites SrFe1-xCoxO3 (0≤x≤1) are of a great interest because the high oxidation states of the transition-metal (Fe(IV), Co(IV)) can be stabilized. Moreover these compounds exhibit interesting magnetic properties. These oxygen stoichiometric phases have been prepared only under high oxygen pressures. A novel preparation method of these phases has been investigated using electrochemical oxidation of the SrFe1-xCoxO2.5 brownmillerite-type compounds [1-3]. The starting materials and the phases obtained after electrochemical processing have been characterized by X-ray powder diffraction, chemical analysis and 57Fe Mössbauer spectroscopy. Finally, the magnetic and transport properties have been studied.< Leer menos

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Perovskites

Oxidation

Electrochemistry

Transition metal

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Investigation of the SrFe1-xCoxO3 (0≤x≤1) Cubic Perovskites Obtained by Electrochemical Oxidation

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