Abstract
The polarization characteristics of acid zinc sulphate electrolytes containing various amounts of germanium and cobalt were examined by cyclic voltammetry. The effects of zinc and acid concentration, temperature, and surface preparation were also investigated. Small concentrations of impurities are shown to cause measurable changes in polarization behavior. Levels as low as 0.02 mgl-1 Ge and 0.1 mgl-1 Co can be detected using this technique. The actual mechanism of impurity behavior is more clearly delineated using this technique and evaluation of the data from these tests indicate that germanium and cobalt form local galvanic cells. The results of these short-term tests are shown to correlate with classical long-term efficiency tests. The deposit morphologies obtained for short-time cathodic cycles were also studied using scanning electron microscopy. © 1980 Chapman and Hall Ltd.
Recommended Citation
D. R. Fosnacht and T. J. O'Keefe, "Evaluation Of Zinc Sulphate Electrolytes Containing Certain Impurities And Additives By Cyclic Voltammetry," Journal of Applied Electrochemistry, vol. 10, no. 4, pp. 495 - 504, Springer, Jul 1980.
The definitive version is available at https://doi.org/10.1007/BF00614083
Department(s)
Materials Science and Engineering
International Standard Serial Number (ISSN)
1572-8838; 0021-891X
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2023 Springer, All rights reserved.
Publication Date
01 Jul 1980
