• Copper oxide electrodeposition onto aluminium substrate exploration: new insights in the copper oxide electrodeposition from ionic liquids and deep eutectic solvents

    • Fulltext


        Click here to view fulltext PDF

      Permanent link:

    • Keywords


      Copper and copper oxide; aluminium substrate; ionic liquids; deep eutectic solvents; electrodeposition.

    • Abstract


      In this article, we have reported the electrochemical deposition behaviour of copper and copper oxides on aluminium substrate from ionic liquids (ILs) and for the first time from deep eutectic solvents (DESs) based lithium. The electrodeposition tests were performed using pyrrolidinium acetate ([pyrr][CH$_3$COO]) and pyrrolidinium hydrogen sulphate ([Pyrr][HSO$_4$]) ILs and two DES based on N-methylacetamide (NMA) and lithium salt LiX imide (X = bis [(trifluoromethyl) sulphonyl] imide (TFSI) and nitrate (NO$_3$)). The electrochemical behaviour of copper and copper oxides were investigated by cyclic sweep voltammetries. All the experimental tests were carried out at 50°C and aconcentration of 0.02 M of copper acetate. The related samples were analysed by scanning electron microscopy, energy dispersive X-ray spectroscopy, X-ray diffraction and Raman spectroscopy. The experimental results showed that thecopper can be electrochemically reduced in solid state in either Ls or DES. For IL of [Pyrr][HSO$_4$], structural characterization showed the formation of CuO films as an effect of annealing (in air at 600°C for 30 min). In the deep eutecticmelt, a mechanism for this reduction process has been proposed based on the formation of unstable copper oxide.

    • Author Affiliations



      1. Laboratoire d’Electrochimie, Corrosion et de Valorisation Energétique (LECVE), Faculté de Technologie, Université de Bejaia, 06000 Bejaia, Algeria
      2. Centre de Recherche rue de Saint-Maudé, Institut de Recherche Dupuy de Lôme, IRDL UMR CNRS 6027, Université de Bretagne Sud, 56100 Lorient, France
      3. Laboratoire de Valorisation des Energies Fossiles (LAVALEF), Ecole Nationale Polytechnique d’Alger, 16200 Alger, Algeria
    • Dates

  • Bulletin of Materials Science | News

    • Dr Shanti Swarup Bhatnagar for Science and Technology

      Posted on October 12, 2020

      Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
      Chemical Sciences 2020

      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
      Physical Sciences 2020

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

© 2021-2022 Indian Academy of Sciences, Bengaluru.