Electroplated Fe films prepared from a deep eutectic solvent

Yanai, Takeshi; Shiraishi, Kazuyuki; Shimokawa, Takaya; Watanabe, Yusuke; Ohgai, Takeshi; Nakano, Masaki; Suzuki, Kiyonori; Fukunaga, H.

doi:10.1063/1.4870319

Cited by 13 publications

(10 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…37 As well, high temperature promotes the migration of ions leading to the significant increase of current density due to the anabatic thermal motion and the katabatic dynamic viscosity. 38,39 The conductivities of the Co-Sn-Ethaline electrolyte at 25, 50 and 75 • C are measured to be 8.32, 11.30 and 14.25 μS cm −1 , respectively. As shown in the inset of Fig.…”

Section: Resultsmentioning

confidence: 99%

Enhanced Corrosion Resistance of Co-Sn Alloy Coating with a Self-Organized Layered Structure Electrodeposited from Deep Eutectic Solvent

Zhang

Fashu

et al. 2014

J. Electrochem. Soc.

View full text Add to dashboard Cite

Co-Sn alloy coatings are electrodeposited from a choline chloride/ethylene glycol eutectic-based electrolyte, named Ethaline, containing CoCl2·6H2O and SnCl2·2H2O without any complexing agent or additive. Cyclic voltammetry shows that the co-electrodeposition of Sn and Co is feasible due to the adjacent reduction potentials of Sn(II) and Co(II) in the solution. X-ray diffraction reveals that the films mainly contain Co3Sn2 with expanded lattice parameters and pure Sn phases. Interestingly, a self-organization of layered structure with different Co content for each layer and mixed amorphous-nanocrystalline phases are formed in the electrodeposited film, which is revealed by cross-section transmission electron microscopy observations. The formation mechanism of the layered film is discussed based on the particular fluctuation of the current-time curve. The layered Co-Sn alloy coating with a total thickness of about 400 nm exhibits enhanced corrosion resistance showing a corrosion potential of −326 mV (vs. Ag/AgCl) and a corrosion current density of about 0.09 μA cm−2 in a 3.5 wt.% NaCl aqueous solution.

show abstract

Section: Resultsmentioning

confidence: 99%

Enhanced Corrosion Resistance of Co-Sn Alloy Coating with a Self-Organized Layered Structure Electrodeposited from Deep Eutectic Solvent

Zhang

Fashu

et al. 2014

J. Electrochem. Soc.

View full text Add to dashboard Cite

show abstract

“…[5][6][7][8] We have reported Fe, Fe-Ni and Fe-Co films prepared in DES-based plating baths, and confirmed high current efficiency of the plating process. [9][10][11] As some Fe-Ni-Co films with high saturation magnetization and low coercivity have been reported using aqueous plating baths 12 and sputtering method, 13,14 we also focused on Fe-Ni-Co ternary alloy. In this study, we investigated the structural and the magnetic properties of the Fe-Ni-Co films plated in the DES-based plating bath.…”

Section: Introductionmentioning

confidence: 99%

Electroplated Fe-Co-Ni films prepared from deep-eutectic-solvent-based plating baths

et al. 2016

View full text Add to dashboard Cite

We fabricated soft magnetic films from DES-based plating baths, and investigated magnetic properties of the plated films. The plating baths were obtained by stirring the mixture of choline chloride, ethylene glycol, FeCl2 ⋅ 4H2O, NiCl2 ⋅ 6H2O and CoCl2 ⋅ 6H2O. The composition of the electroplated film depended on the amount of the reagent in the plating bath, and we consequently obtained the films with various composition. The current efficiency of the plating process shows high values (> 88 %) in the wide composition range. The soft magnetic films with low coercivity were obtained at the Fe compositions of ≈ 30 at.% and > 80 at.%, and we found that low coercivity could be realized by the control of the film composition. We also found that the Fe-rich films prepared from DES-based plating bath have some advantages as a soft magnetic phase for a nanocomposite magnet due to their high saturation magnetization and very fine crystal structure.

show abstract

“…In fact, there have been some reports on magnetic films such as Ni, Co, Ni-Co, Ni-Co-Sn, Sm-Co, and Co-Pt prepared from DESbased baths, [3][4][5][6][7][8][9][10] and we have also reported Fe and Fe-Ni films prepared in DES-based plating baths. 11,12 In our previous studies, we confirmed that the plating processes from the DES-based baths for the Fe and the Fe-Ni films have high current efficiency (>90%). As high current efficiency of the plating processes for Ni films were also reported by Motoyama et al, 13 the DES is one of hopeful solvents for the magnetic films.…”

Section: Introductionmentioning

confidence: 51%

Magnetic Fe-Co films electroplated in a deep-eutectic-solvent-based plating bath

Yanai

Shiraishi

Watanabe

et al. 2015

Journal of Applied Physics

Self Cite

View full text Add to dashboard Cite

We fabricated Fe-Co films from a deep eutectic solvent (DES)-based plating bath and investigated magnetic properties of the plated films. The plating baths were obtained by stirring the mixture of choline chloride, ethylene glycol, FeCl 2 Á4H 2 O, and CoCl 2 Á6H 2 O. The composition of the plated films depended on the amount of FeCl 2 Á4H 2 O in the plating bath, and Fe content of the films was varied from 0 to 100 at. %. Depending on the Fe content, the saturation magnetization and the coercivity of the films varied. The Fe 76 Co 24 film shows high saturation magnetization and smooth surface, and the change in the saturation magnetization shows good agreement with the expected change by the Slater-Pauling curve. High current efficiency (>90%) could be obtained in the wide film composition. From these results, we concluded that the DES-based plating bath is one of effective baths for the Fe-Co films with high current efficiency. V C 2015 AIP Publishing LLC.

show abstract

Electroplated Fe films prepared from a deep eutectic solvent

Cited by 13 publications

References 28 publications

Enhanced Corrosion Resistance of Co-Sn Alloy Coating with a Self-Organized Layered Structure Electrodeposited from Deep Eutectic Solvent

Enhanced Corrosion Resistance of Co-Sn Alloy Coating with a Self-Organized Layered Structure Electrodeposited from Deep Eutectic Solvent

Electroplated Fe-Co-Ni films prepared from deep-eutectic-solvent-based plating baths

Magnetic Fe-Co films electroplated in a deep-eutectic-solvent-based plating bath

Contact Info

Product

Resources

About