Journal of Applied Electrochemistry

, Volume 19, Issue 2, pp 275–280 | Cite as

Aluminium electrodeposition from AlCl3-NaCl melts on glassy carbon, platinum and gold electrodes

  • V. D. Jović
  • J. N. Jovićević
Papers

Abstract

The electrochemical deposition and dissolution of aluminium on glassy carbon, platinum and gold electrodes in chloraluminate melts have been investigated using linear sweep voltammetry and potentiostatic pulse techniques. It was shown that deposition of aluminium on the glassy carbon electrode at low overpotentials takes place by 3-D progressive nucleation and growth, with the incorporation of atoms in the crystal lattice as the rate-determining step. At overpotentials higher than −100 mV vs Al, in the melts containing more than 52 mol % of AlCl3, diffusion of Al2Cl7, takes over the control of deposition of aluminium. Alloying of platinum and gold electrodes with aluminium from the melt occurs in the underpotential region.

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Copyright information

© Chapman and Hall Ltd. 1989

Authors and Affiliations

  • V. D. Jović
    • 1
  • J. N. Jovićević
    • 2
  1. 1.Institute of Technical Sciences of the Serbian Academy of Science and ArtsBeogradYugoslavia
  2. 2.Materials Research and Development Institute, ‘Energoinvest’SarajevoYugoslavia

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