Abstract
Reactions of manganese oxides of various compositions with sulfuric acid solutions have been studied by kinetic and electrochemical methods. The surface composition of the manganese oxides has been shown to vary during the dissolution process. We present mathematical dependences of the dissolution rate on kinetic parameters of the electrolyte solution for the oxides of various compositions and interpret the behavior of the manganese oxide with various compositions during dissolution in sulfuric acid solutions of various concentrations.
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Izotov, A.D., Gorichev, I.G., and Pankratov, D.V., Probabilistic and fractal approaches to deriving rate equations for heterogeneous oxide dissolution processes, Inorg. Mater., 2010, vol. 46, no. 6, pp. 660–667.
Sobolev, A.E., Lutsik, V.I., and Potashnikov, Yu.M., The kinetics of hydrochemical oxidation of iron(II) persulfide (pyrite) by nitric acid, Russ. J. Phys. Chem. A, 2001, vol. 75, no. 5, pp. 757–759.
Gorichev, I.G., Kutepov, A.M., Gorichev, A.I., Izotov, A.D., and Zaitsev, B.E., Kinetika i mekhanizm rastvoreniya oksidov i gidroksidov zheleza v kislykh sredakh (Kinetics and Mechanisms of the Dissolution of Iron Oxides and Hydroxides in Acid Media), Moscow: Ross. Univ. Druzhby Narodov, 1999.
Medvedev, A.S., Vyshchelachivanie i sposoby ego intensifikatsii (Leaching and Ways of Activating It), Moscow: Mosk. Inst. Stali i Splavov, 2005.
Yaroslavtsev, A.B., Kulova, T.L., and Skundin, A.M., Electrode nanomaterials for lithium-ion batteries, Russ. Chem. Rev., 2015, vol. 84, no. 8, pp. 826–852.
Rode, E.Ya., Kislorodnye soedineniya margantsa (Manganese Oxide Compounds), Moscow: Akad. Nauk SSSR, 1952.
Vetter, K.J., Elektrochemische Kinetik, Berlin: Springer, 1961.
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Original Russian Text © E.B. Godunov, A.D. Izotov, I.G. Gorichev, 2017, published in Neorganicheskie Materialy, 2017, Vol. 53, No. 8, pp. 845–850.
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Godunov, E.B., Izotov, A.D. & Gorichev, I.G. Reactions of manganese oxides with sulfuric acid solutions studied by kinetic and electrochemical methods. Inorg Mater 53, 831–837 (2017). https://doi.org/10.1134/S0020168517080052
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DOI: https://doi.org/10.1134/S0020168517080052