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Electrodeposition of Nanocrystalline Ni-Fe Alloy Coatings Based on 1-Butyl-3-Methylimidazolium-Hydrogen Sulfate Ionic Liquid

Xinkuai He, Chuang Zhang, Qingyun Zhu, Haozi Lu, Youxing Cai, Luye Wu

J Nanosci Nanotechnol. 2017 Feb;17(2):1108-115.

PMID: 29676556

Abstract:

The electrodeposition of nanocrystalline Ni-Fe alloy coatings and associated nucleation/growth processes are investigated on the glassy carbon (GC) electrode in 1-butyl-3-methylimidazolium-hydrogen sulfate ([BMIM]HSO4) ionic liquid (IL). Cyclic voltammetric data suggest that the co-electrodeposition of Ni-Fe alloys is quasi-reversible. Moreover, chronoamperometry results indicate that the electrodeposition proceeds via a simultaneous nucleation and three-dimensional growth mechanism. In addition, the effects of electrodeposition potential and electrolyte temperature on the coating thickness and Fe content are also studied. The microstructure and composition of the Ni-Fe alloy coatings on Cu substrate are investigated using scanning electron microscopy (SEM), X-ray diffraction (XRD) and energy-dispersive spectroscopy (EDS). SEM observations show that these electrodeposits present a dense and compact structure, EDS analysis indicates that the coatings are composed of Ni and Fe, XRD pattern shows the coatings are crystalline with a face-centred cubic (fcc) structure. Tafel plots reveal that the Ni-Fe alloy prepared from [BMIM]HSO4 IL presents better corrosion resistance than that of pure Ni.

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
AP262297132 1-Butyl-3-methylimidazolium hydrogen sulfate 1-Butyl-3-methylimidazolium hydrogen sulfate 262297-13-2 Price
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