Effect of cation ordering on the electrochemical properties of (MgCr2O4) x (Fe3O4)1 − x solid solutions

Autor:	Yu. V. Pankov, V. B. Fetisov, S. Kh. Estemirova, A. V. Fetisov, A. N. Ermakov, G. A. Kozhina
Rok vydání:	2014
Předmět:	Inorganic Chemistry Crystallography Octahedron Chemistry General Chemical Engineering Spinel Materials Chemistry Metals and Alloys engineering engineering.material Electrochemistry Solid solution Highly sensitive
Zdroj:	Inorganic Materials. 50:960-967
ISSN:	1608-3172 0020-1685
DOI:	10.1134/s0020168514090064
Popis:	We have studied the influence of long- and short-range cation order on the crystallographic, electrical, and electrochemical properties of (MgCr2O4)x(Fe3O4)1 − x solid solutions. A mathematical model has been proposed which ensures an adequate description of the composition dependences of these properties. Short-range cation order on the octahedral site of the spinel structure has been shown to have a significant effect on these properties at x < 0.5. The results of this study demonstrate that the electrochemical reduction process is highly sensitive to structural features of the (MgCr2O4)x(Fe3O4)1 − x solid solutions.
Databáze:	OpenAIRE
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