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Electrochemical Behavior of an Amorphous Alloy in an Ionic Liquid and in Aqueous Media

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Abstract

A study is performed of the effect pretreatment with solutions of benzoic acid in an organic solvent has on the result from the electrochemical oxidation of amorphous alloy Fe70Cr15B15 in an ionic liquid 1‑butyl-3-methylimidazolium tetrafluoroborate. It is established that the nature and properties of surface oxide films affect the result from the electrochemical oxidation of the alloy in an ionic liquid. Partial removal of oxide films by a solution of benzoic acid and subsequent electrooxidation in an ionic liquid reveals a nano-cellular structure on the electrode’s surface. It is shown that preliminarily treating the alloy with a saturated solution of benzoic acid in acetone results in a considerable anodic shift in the corrosion potential and the formation of a more effective protective coating.

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ACKNOWLEDGMENTS

The authors thank V.S. Snytko, I.I. Kuznetsova, and I.V. Balykova for their help in preparing this work.

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Authors and Affiliations

  1. Department of Chemistry, Moscow State University, 119991, Moscow, Russia

    O. K. Lebedeva, D. Yu. Kultin, A. N. Zakharov & L. M. Kustov

  2. Bauman Moscow State Technical University, 105005, Moscow, Russia

    A. N. Zakharov

  3. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991, Moscow, Russia

    L. M. Kustov

Authors
  1. O. K. Lebedeva
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  2. D. Yu. Kultin
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  3. A. N. Zakharov
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  4. L. M. Kustov
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Correspondence to O. K. Lebedeva.

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Lebedeva, O.K., Kultin, D.Y., Zakharov, A.N. et al. Electrochemical Behavior of an Amorphous Alloy in an Ionic Liquid and in Aqueous Media. Russ. J. Phys. Chem. 94, 2379–2381 (2020). https://doi.org/10.1134/S0036024420110205

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  • DOI: https://doi.org/10.1134/S0036024420110205

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