The electrochemical deposition of Zn-Mn coating from choline chloride-urea deep eutectic solvent
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2017
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Electrochemical and microscopic techniques were used for the characterisation of Zn-Mn coatings electrodeposited from choline chloride-urea deep eutectic solvent. Cyclic voltammograms show that there was no discernible Mn reduction peak when only Mn2+ was present in DES solution. The distinct Mn peak developed only upon addition of Zn2+ to the solution, probably due to previous Zn nucleation on the steel substrate. It was found that 22-27 wt-% Mn deposited at current densities of 3-8 mA cm(-2), amounts significantly higher than those obtained from aqueous electrolytes. Since higher deposition current densities resulted in the formation of a porous surface consisting of clusters of nodular crystallites, the optimal deposition c.d was determined to be 3 mA cm(-2).
Ključne reči:
Zn-Mn coating / Electrodeposition / Deep eutectic solvent / Choline chloride / Urea / Ionic liquid / Cyclic voltammetry / AlloyIzvor:
Transactions of the Institute of Metal Finishing, 2017, 95, 1, 60-64Izdavač:
- Taylor & Francis Ltd, Abingdon
Finansiranje / projekti:
- info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45019/RS// (RS-45019)
- COST ActionEuropean Cooperation in Science and Technology (COST) [MP1407]
DOI: 10.1080/00202967.2017.1255412
ISSN: 0020-2967