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Corrosion and adsorption properties of electrochemical manganese dioxide in the acidic and weakly alkaline sulfate solutions

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Abstract

Corrosion and adsorption properties of manganese dioxide, which was anodically deposited on platinum, its powder, and compacted tablets of manganese dioxide in the solutions with various pH values are studied using various experimental methods. It is shown that the corrosion rate of manganese dioxide decreases with increasing pH of solution, and the process proceeds by the electrochemical mechanism with conjugate chemical reactions of the formation and decomposition of the product of transition stage. The adsorption properties of manganese dioxide powder with respect to copper ions increase with increasing pH of solution, whereas the amount of manganese ions passing to the solution almost vanishes at pH 9.

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Authors and Affiliations

  1. Agladze Institute of Inorganic Chemistry and Electrochemistry, Tbilisi, Georgia

    O. G. Tsiklauri, T. A. Marsagishvili, G. S. Tsurtsumiya & D. I. Dzanashvili

  2. Institute of Sorption and Endoecology, National Academy of Sciences of Ukraine, Kiev, Ukraine

    S. A. Kirillov

Authors
  1. O. G. Tsiklauri
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  2. T. A. Marsagishvili
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  3. G. S. Tsurtsumiya
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  4. S. A. Kirillov
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  5. D. I. Dzanashvili
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Corresponding author

Correspondence to T. A. Marsagishvili.

Additional information

Original Russian Text © O.G. Tsiklauri, T.A. Marsagishvili, G.S. Tsurtsumiya, S.A. Kirillov, D.I. Dzanashvili, 2008, published in Elektrokhimiya, 2008, Vol. 44, No. 10, pp. 1256–1260.

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Tsiklauri, O.G., Marsagishvili, T.A., Tsurtsumiya, G.S. et al. Corrosion and adsorption properties of electrochemical manganese dioxide in the acidic and weakly alkaline sulfate solutions. Russ J Electrochem 44, 1166–1170 (2008). https://doi.org/10.1134/S1023193508100133

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  • DOI: https://doi.org/10.1134/S1023193508100133

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