Effect of Sodium Citrate as Complexing Agent on the Electrodeposited CuZn Alloys: Electrochemical, Morphology, Structure, and Electrical Resistivity Studies

Rasim Ozdemir O., İsmail Hakki Karahan H.

Protection of Metals and Physical Chemistry of Surfaces, vol.59, no.3, pp.445-452, 2023 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 59 Issue: 3
  • Publication Date: 2023
  • Doi Number: 10.1134/s207020512370051x
  • Journal Name: Protection of Metals and Physical Chemistry of Surfaces
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, Compendex, INSPEC, Metadex
  • Page Numbers: pp.445-452
  • Keywords: CuZn thin films, electrical resistivity, electrodeposition, nanocrystalline
  • Hatay Mustafa Kemal University Affiliated: Yes

Abstract

Abstract: In this study, sodium citrate (SC) ions were applied as a complexing agent in the co-deposition of CuZn alloy thin film coatings from nontoxic sulphate electrolyte at room temperature. This study examined the effects of SC ion concentrations on morphology, electrical resistivity, and structure of the deposited thin films. Using the cyclic voltammetry method, electrochemical analyzes were performed. It was seen in the results of XRD analyzes that merely α and/or β phases were formed in the CuZn thin-film coatings. Average grain sizes, estimated by Scherrer’s formula, were decreased 63% via the addition of SC to the bath. Electrical resistivity properties of electrodeposited CuZn alloys were realized at a wide range temperature between 100 to 405 K. It is seen that when the amount of SC in the electrolyte increases, it decreases the amount of copper in the film, increases the amount of zinc, and increases the electrical resistance of the film.