Comparative study of Cu–Zn coatings electrodeposited from sulphate and chloride baths

C. Oulmas; S. Mameri; D. Boughrara; A. Kadri; J. Delhalle; Z. Mekhalif; B. Benfedda

doi:10.1016/j.heliyon.2019.e02058

Comparative study of Cu–Zn coatings electrodeposited from sulphate and chloride baths

C. Oulmas, S. Mameri, D. Boughrara, A. Kadri, J. Delhalle, Z. Mekhalif, B. Benfedda

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Résumé

In this work, the effect of the nature of the salt anion (chloride and sulphate) in the Cu–Zn citrate bath was investigated, using cyclic voltammetry (CV) and chronoamperometry (CA). Experimental electrodeposition parameters (switching potential and imposed potential) were varied in order to examine their influence on the deposits. The coating microstructures were observed by scanning electron microscope (SEM-EDS), the coating phases were characterized by X-ray diffraction (XRD) analysis and the surface composition was assessed by XPS. Higher current efficiency was obtained in chloride baths compared to sulphate baths and best deposits were obtained at −1.4Vvs.(Ag/AgCl/KCl) compared to −1.2 and −1.5Vvs.(Ag/AgCl/KCl). Corrosion test results in 0.5 M NaCl solution show that Cu–Zn deposit produced from chloride bath exhibited the highest corrosion resistance.

langue originale	Anglais
Numéro d'article	e02058
Pages (de - à)	e02058
journal	Heliyon
Volume	5
Numéro de publication	7
Les DOIs	https://doi.org/10.1016/j.heliyon.2019.e02058
Etat de la publication	Publié - juil. 2019

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10.1016/j.heliyon.2019.e02058

1-s2.0-S2405844019357184-mainVersion finale publiée, 3,89 MBLicense: CC BY-NC-ND

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title = "Comparative study of Cu–Zn coatings electrodeposited from sulphate and chloride baths",

abstract = "In this work, the effect of the nature of the salt anion (chloride and sulphate) in the Cu–Zn citrate bath was investigated, using cyclic voltammetry (CV) and chronoamperometry (CA). Experimental electrodeposition parameters (switching potential and imposed potential) were varied in order to examine their influence on the deposits. The coating microstructures were observed by scanning electron microscope (SEM-EDS), the coating phases were characterized by X-ray diffraction (XRD) analysis and the surface composition was assessed by XPS. Higher current efficiency was obtained in chloride baths compared to sulphate baths and best deposits were obtained at −1.4Vvs.(Ag/AgCl/KCl) compared to −1.2 and −1.5Vvs.(Ag/AgCl/KCl). Corrosion test results in 0.5 M NaCl solution show that Cu–Zn deposit produced from chloride bath exhibited the highest corrosion resistance.",

keywords = "Chloride, Citrate, Corrosion, Cu–Zn alloy, Electrochemistry, Electrodeposition, Materials science, Steel, Sulphate",

author = "C. Oulmas and S. Mameri and D. Boughrara and A. Kadri and J. Delhalle and Z. Mekhalif and B. Benfedda",

note = "Funding Information: This work was supported by the Laboratoire de Physique et Chimie des Mat{\'e}riaux (LPCM) , Universit{\'e} Mouloud MAMMERI de Tizi-Ouzou (UMMTO) of Algeria and the Laboratoire de Chimie et d'Electrochimie des Surfaces (CES) , Universit{\'e} de Namur of Belgium, through the financial support of D{\'e}partement de Chimie de la Facult{\'e} des Sciences of UMMTO and the project {"}Erasmus+{"}. Publisher Copyright: {\textcopyright} 2019",

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T1 - Comparative study of Cu–Zn coatings electrodeposited from sulphate and chloride baths

AU - Oulmas, C.

AU - Mameri, S.

AU - Boughrara, D.

AU - Kadri, A.

AU - Delhalle, J.

AU - Mekhalif, Z.

AU - Benfedda, B.

N1 - Funding Information: This work was supported by the Laboratoire de Physique et Chimie des Matériaux (LPCM) , Université Mouloud MAMMERI de Tizi-Ouzou (UMMTO) of Algeria and the Laboratoire de Chimie et d'Electrochimie des Surfaces (CES) , Université de Namur of Belgium, through the financial support of Département de Chimie de la Faculté des Sciences of UMMTO and the project "Erasmus+". Publisher Copyright: © 2019

PY - 2019/7

Y1 - 2019/7

N2 - In this work, the effect of the nature of the salt anion (chloride and sulphate) in the Cu–Zn citrate bath was investigated, using cyclic voltammetry (CV) and chronoamperometry (CA). Experimental electrodeposition parameters (switching potential and imposed potential) were varied in order to examine their influence on the deposits. The coating microstructures were observed by scanning electron microscope (SEM-EDS), the coating phases were characterized by X-ray diffraction (XRD) analysis and the surface composition was assessed by XPS. Higher current efficiency was obtained in chloride baths compared to sulphate baths and best deposits were obtained at −1.4Vvs.(Ag/AgCl/KCl) compared to −1.2 and −1.5Vvs.(Ag/AgCl/KCl). Corrosion test results in 0.5 M NaCl solution show that Cu–Zn deposit produced from chloride bath exhibited the highest corrosion resistance.

AB - In this work, the effect of the nature of the salt anion (chloride and sulphate) in the Cu–Zn citrate bath was investigated, using cyclic voltammetry (CV) and chronoamperometry (CA). Experimental electrodeposition parameters (switching potential and imposed potential) were varied in order to examine their influence on the deposits. The coating microstructures were observed by scanning electron microscope (SEM-EDS), the coating phases were characterized by X-ray diffraction (XRD) analysis and the surface composition was assessed by XPS. Higher current efficiency was obtained in chloride baths compared to sulphate baths and best deposits were obtained at −1.4Vvs.(Ag/AgCl/KCl) compared to −1.2 and −1.5Vvs.(Ag/AgCl/KCl). Corrosion test results in 0.5 M NaCl solution show that Cu–Zn deposit produced from chloride bath exhibited the highest corrosion resistance.

KW - Chloride

KW - Citrate

KW - Corrosion

KW - Cu–Zn alloy

KW - Electrochemistry

KW - Electrodeposition

KW - Materials science

KW - Steel

KW - Sulphate

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JO - Heliyon

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Comparative study of Cu–Zn coatings electrodeposited from sulphate and chloride baths

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