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Regression analysis of dependences of adsorption potential shifts on the charge in systems (Tl-Ga)/[N-methylformamide + mc KI + (1 − m)c KClO4], (Tl-Ga)/[N-methylformamide + mc KBr + (1 − m)c KClO4] and (Tl-Ga)/[N-methylformamide + mc KCl + (1 − m)c KClO4]

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Abstract

By the regression analysis of dependences of the adsorption potential shift (E ads) on the electrode charge in systems (Tl-Ga)/[NMF + 0.1m M KI + 0.1(1 − m) M KClO4], (Tl-Ga)/[NMF + 0.1m M KBr + 0.1(1 − m) M KClO4], and (Tl-Ga)/[NMF + 0.1m M KCl + 0.1(1 − m) M KClO4] with the following m fractions of the surface-active anion: 0.05, 0.1, 0.2, 0.5, and 1, the adsorption parameters are calculated in terms of two models based on the Frumkin isotherm both considering the free adsorption energy as a quadratic function of the electrode charge, where one model takes into account the diffuse layer and the other ignores it. It is shown that for the studied electrode charges q ≤ 2 μC/cm2, both models provide equal accuracy in calculating E ads in the systems under study.

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Authors and Affiliations

  1. Faculty of Chemistry, Moscow State University, Vorob’evy Gory, Moscow, 119992, Russia

    B. B. Damaskin & V. A. Safonov

  2. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119071, Russia

    V. V. Emets

Authors
  1. B. B. Damaskin
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  2. V. A. Safonov
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  3. V. V. Emets
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Correspondence to B. B. Damaskin.

Additional information

Original Russian Text © B.B. Damaskin, V.A. Safonov, V.V. Emets, 2013, published in Elektrokhimiya, 2013, Vol. 49, No. 4, pp. 440–444.

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Damaskin, B.B., Safonov, V.A. & Emets, V.V. Regression analysis of dependences of adsorption potential shifts on the charge in systems (Tl-Ga)/[N-methylformamide + mc KI + (1 − m)c KClO4], (Tl-Ga)/[N-methylformamide + mc KBr + (1 − m)c KClO4] and (Tl-Ga)/[N-methylformamide + mc KCl + (1 − m)c KClO4]. Russ J Electrochem 49, 391–395 (2013). https://doi.org/10.1134/S1023193513040058

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  • DOI: https://doi.org/10.1134/S1023193513040058

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