Effect of Copper Ion and Water on Anodic Dissolution of Metallic Copper in a Deep Eutectic Solvent (DES)

This report presents influence of water and copper salt on the anodic dissolution of metallic copper in a eutectic solvent of choline chloride and ethylene glycol (DES) in a 1 : 2 molar ratio. The mechanism of copper dissolution anodically was investigated using anodic linear sweep voltammetry (LSV)...

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Main Authors: Wrya O. KARIM, Jamil A. JUMA, Khalid M. OMER, Kosar Hikmat HAMA AZIZ, Yousif M. SALAH, Shujahadeen B. AZIZ
Format: Article
Language:English
Published: The Electrochemical Society of Japan 2021-01-01
Series:Electrochemistry
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/electrochemistry/89/1/89_20-00129/_pdf/-char/en
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author Wrya O. KARIM
Jamil A. JUMA
Khalid M. OMER
Kosar Hikmat HAMA AZIZ
Yousif M. SALAH
Shujahadeen B. AZIZ
author_facet Wrya O. KARIM
Jamil A. JUMA
Khalid M. OMER
Kosar Hikmat HAMA AZIZ
Yousif M. SALAH
Shujahadeen B. AZIZ
author_sort Wrya O. KARIM
collection DOAJ
description This report presents influence of water and copper salt on the anodic dissolution of metallic copper in a eutectic solvent of choline chloride and ethylene glycol (DES) in a 1 : 2 molar ratio. The mechanism of copper dissolution anodically was investigated using anodic linear sweep voltammetry (LSV) and electrochemical impedance spectroscopy (EIS). Atomic force microscope (AFM) was used to examine the morphology and topography of the surface after electrochemical dissolution course. The addition of 1, 4, 8, 16 and 20 vol% of water cause pitting and has no significant impact on the electrochemical behavior, in particular the shape of anodic linear sweep voltammetry remains unchanged. The more profound effect was seen from the microscopic analysis. The addition of 0.1 and 0.81 M CuCl2 into this eutectic solvent resulted in relatively high resistance at the interfacial region where charge transfer occurs during anodic dissolution of metallic copper using impedance responses. The results confirmed that water will not affect anodic dissolution behavior and the chemistry of dissolution in the deep eutectic solvent.
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spelling doaj.art-05e638c3cdeb49db91e16cf14a3513b62023-01-02T07:46:50ZengThe Electrochemical Society of JapanElectrochemistry2186-24512021-01-01891717410.5796/electrochemistry.20-00129electrochemistryEffect of Copper Ion and Water on Anodic Dissolution of Metallic Copper in a Deep Eutectic Solvent (DES)Wrya O. KARIM0Jamil A. JUMA1Khalid M. OMER2Kosar Hikmat HAMA AZIZ3Yousif M. SALAH4Shujahadeen B. AZIZ5Chemistry Department, College of Science, University of SulaimaniDepartment of Chemistry, Faculty of Science and Health, Koya UniversityChemistry Department, College of Science, University of SulaimaniChemistry Department, College of Science, University of SulaimaniChemistry Department, College of Science, University of SulaimaniAdvanced Polymeric Materials Research Lab., Department of Physics, College of Science, University of SulaimaniThis report presents influence of water and copper salt on the anodic dissolution of metallic copper in a eutectic solvent of choline chloride and ethylene glycol (DES) in a 1 : 2 molar ratio. The mechanism of copper dissolution anodically was investigated using anodic linear sweep voltammetry (LSV) and electrochemical impedance spectroscopy (EIS). Atomic force microscope (AFM) was used to examine the morphology and topography of the surface after electrochemical dissolution course. The addition of 1, 4, 8, 16 and 20 vol% of water cause pitting and has no significant impact on the electrochemical behavior, in particular the shape of anodic linear sweep voltammetry remains unchanged. The more profound effect was seen from the microscopic analysis. The addition of 0.1 and 0.81 M CuCl2 into this eutectic solvent resulted in relatively high resistance at the interfacial region where charge transfer occurs during anodic dissolution of metallic copper using impedance responses. The results confirmed that water will not affect anodic dissolution behavior and the chemistry of dissolution in the deep eutectic solvent.https://www.jstage.jst.go.jp/article/electrochemistry/89/1/89_20-00129/_pdf/-char/enanodic dissolutionanodic linear sweep studydeep eutectic solventimpedance
spellingShingle Wrya O. KARIM
Jamil A. JUMA
Khalid M. OMER
Kosar Hikmat HAMA AZIZ
Yousif M. SALAH
Shujahadeen B. AZIZ
Effect of Copper Ion and Water on Anodic Dissolution of Metallic Copper in a Deep Eutectic Solvent (DES)
Electrochemistry
anodic dissolution
anodic linear sweep study
deep eutectic solvent
impedance
title Effect of Copper Ion and Water on Anodic Dissolution of Metallic Copper in a Deep Eutectic Solvent (DES)
title_full Effect of Copper Ion and Water on Anodic Dissolution of Metallic Copper in a Deep Eutectic Solvent (DES)
title_fullStr Effect of Copper Ion and Water on Anodic Dissolution of Metallic Copper in a Deep Eutectic Solvent (DES)
title_full_unstemmed Effect of Copper Ion and Water on Anodic Dissolution of Metallic Copper in a Deep Eutectic Solvent (DES)
title_short Effect of Copper Ion and Water on Anodic Dissolution of Metallic Copper in a Deep Eutectic Solvent (DES)
title_sort effect of copper ion and water on anodic dissolution of metallic copper in a deep eutectic solvent des
topic anodic dissolution
anodic linear sweep study
deep eutectic solvent
impedance
url https://www.jstage.jst.go.jp/article/electrochemistry/89/1/89_20-00129/_pdf/-char/en
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