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The diffusion coefficient of Cu(II) ions in sulfuric acid–aqueous and methanesulfonic acid–methanol solutions

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Abstract

When using a copper working electrode to study the diffusion of Cu(II) ions it is necessary to polish the electrode between experiments to maintain a smooth surface. To eliminate the required polishing, a platinum working electrode can be used. The copper layer established on the electrode surface during experimentation can be removed between experiments by anodic stripping. When using a platinum disk working electrode, the most reliable method of analysis involves double potential step chrono-amperometry method as opposed to voltammetry. By applying this method diffusion coefficients for Cu(II) ions in sulphuric acid – aqueous and methanesulfonic acid (HMSA) – methanol solutions were determined.

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Authors and Affiliations

  1. Laboratory of Electrochemistry, Faculty of Chemical Technology, Eindhoven University of Technology, The Netherlands

    S.J. MacHardy & L.J.J. Janssen

Authors
  1. S.J. MacHardy
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  2. L.J.J. Janssen
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Correspondence to L.J.J. Janssen.

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MacHardy, S., Janssen, L. The diffusion coefficient of Cu(II) ions in sulfuric acid–aqueous and methanesulfonic acid–methanol solutions. Journal of Applied Electrochemistry 34, 169–174 (2004). https://doi.org/10.1023/B:JACH.0000009956.75577.ef

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  • DOI: https://doi.org/10.1023/B:JACH.0000009956.75577.ef

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