The Anodic Behaviour of Bulk Copper in Ethaline and 1-Butyl-3-Methylimidazolium Chloride

Karim, Wrya O. and Aziz, Shujahadeen B. and Brza, Mohamed. A. and Abdullah, Ranjdar M. Abdullah and Kadir, Mohd Fakhrul Zamani (2019) The Anodic Behaviour of Bulk Copper in Ethaline and 1-Butyl-3-Methylimidazolium Chloride. Applied Sciences, 9 (20). p. 4401. ISSN 2076-3417, DOI

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The anodic dissolution of bulk metallic copper was conducted in ionic liquids (ILs)-a deep eutectic solvent (DES) ((CH3)3NC2H4OH) comprised of a 1:2 molar ratio mixture of choline chloride Cl (ChCl), and ethylene glycol (EG)-and imidazolium-based ILs, such as C4mimCl, using electrochemical techniques, such as cyclic voltammetry, anodic linear sweep voltammetry, and chronopotentiometry.To investigate the electrochemical dissolution mechanism, electrochemical impedance spectroscopy (EIS) was used. In addition to spectroscopic techniques, for instance, UV-visible spectroscopy, microscopic techniques, such as atomic force microscopy (AFM), were used. The significant industrial importance of metallic copper has motivated several research groups to deal with such an invaluable metal. It was confirmed that the speciation of dissolved copper from the bulk phase at the interface region is [CuCl3]- and [CuCl4]2- in such chloride-rich media, and the EG determine the structure of the interfacial region in the electrochemical dissolution process. A super-saturated solution was produced at the electrode/solution interface and CuCl2 was deposited on the metal surface. © 2019 by the authors.

Item Type: Article
Funders: Ministry of Higher Education and Scientific Research, Kurdistan Regional Government/Iraq, University of Leicester, Leicester, UK
Uncontrolled Keywords: copper electrodissolution; (choline chloride-based IL) ethaline eutectic solvent; butyl-3-methylimidazolium chloride ionic liquid; linear sweep voltammetry; electrochemical impedance spectroscopy; electropolishing
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
Q Science > QD Chemistry
Divisions: Centre for Foundation Studies in Science > Physics Division
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 13 Apr 2020 05:37
Last Modified: 13 Apr 2020 05:37

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