The Influence of Temperature of Electrodeposition on the Electrochemical Properties of Ni Coatings

Abstract:

Porous Ni coatings were prepared by galvanostatic electrodeposition on the steel substrate from the Watts type bath at the deposition current density j_dep = -250 mA cm² at the temperature 40, 50 and 60°C. Investigations of hydrogen evolution reaction (HER) on the obtained Ni electrodes were carried out in 5 M KOH solution at room temperature. It was found that with the increase in the electrodeposition temperature of the coatings, the activity of the Ni electrocatalysts towards the HER decreased due to diminishing surface development of the Ni coatings.

• Periodical: Solid State Phenomena (Volume 228)
• Pages: 242-245
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.228.242
• Online since: March 2015
• Authors: Magdalena Popczyk*, Bożena Łosiewicz
• Keywords: Electrodeposition, Hydrogen Evolution Reaction, Ni Coatings, Temperature

References

[1] Graham's Electroplating Engineering Handbook, L.J. Durney (Ed. ), Fourth Edition, Springer Science & Business Media, (1984).

[2] O.P. Watts: Trans. Am. Electrochem. Soc. Vol. 23 (1916), p.395.

[3] Information on http: /www. wisegeek. com/what-is-nickel-plating. htm.

[4] C. Bocca, A. Barbucci, G. Cerisola: Int. J. Hydrogen Energ. Vol. 23 (1998), p.247.

[5] E. Navarro-Flores, Z. Chong, S. Omanovic: J. Molec. Catalysis A: Chemical Vol. 226 (2005), p.179.

[6] B. Łosiewicz, A. Budniok, E. Rówiński, E. Łągiewka, A. Lasia: Int. J. Hydrogen Energ. Vol. 29 (2004), p.145.

[7] B. Łosiewicz, A. Budniok, E. Rówiński, E. Łągiewka, A. Lasia: J. Appl. Electrochem. Vol. 34 (2004), p.507.