Influence of boric acid on electrodeposition and stripping of Ni-Zn alloys

• Published in: Journal of the Electrochemical Society Vol. 135; no. 4; pp. 839 - 844
• Main Authors: KARWAS, C, HEPEL, T
• Format: Journal Article
• Language: English
• Published: Pennington, NJ Electrochemical Society 01.04.1988
• Subjects: Adsorption; Chemistry; Electrochemistry; Electrodeposition; Exact sciences and technology; General and physical chemistry; Study of interfaces; Transport phenomena; Scanning electron microscopy; Rotating disk electrode; Transition metal Compounds; Anodic stripping voltammetry; Electrode electrolyte interface; Transition metal; Electroplating; Nickel «II» Sulfates; Acidic solution; Platinum; Divalent metal Compounds; Zinc II Sulfates; Electrochemical reaction; Saline solution; Physical method
• ISSN: 0013-4651; 1945-7111
• DOI: 10.1149/1.2095789

The effect of boric acid on the electrodeposition and potentiodynamic stripping behavior of Ni--Zn alloys was investigated using Pt rotating disk electrode. At low Zn(II) concentrations, boric acid raised the current efficiency of the deposition process and, at higher Zn(II) concentrations, an increase in the Ni content of the deposited alloy was observed. In the presence of boric acid, a considerable change in the primary nucleation rate and suppression of the secondary nucleation processes on the alloy surface have also been observed. All these effects have been attributed to the adsorptive interactions of boric acid. 25 ref.--AA