Zinc dissolution and passivation in either arsenate or borate and a mixture of arsenate-borate solutions at pH 8.9 was studied by polarization curves and cyclic voltammetry. The arsenate anion produces an increase on zinc dissolution . Potential sweep rate, rotation speed, temperature, dissolved oxy
Effect of ionic strength on the passivation of zinc electrodes in KOH solutions
β Scribed by T. P. Dirkse; D. J. Kroon
- Publisher
- Springer
- Year
- 1971
- Tongue
- English
- Weight
- 269 KB
- Volume
- 1
- Category
- Article
- ISSN
- 0021-891X
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π SIMILAR VOLUMES
The anodic dissolution and passivation of vertical porous zinc electrodes that were prepared by pressing zinc powder or amalgamated zinc powder into small disks were studied in 6 M KOH + O-25 M ZnO by measuring potentiostatic current/potential curves at a rate of 1 mV/s and by taking photomicrograph
Formulae (1) and (2) differ from eqn. (18) in ref. 1 by the sign. The reason is that the signs of the charge components are considered, so that e = -51-e~-e~. Differentiation of this equation by 51 at e=const, gives \* Indeed, at m=l we have the pure solution of K1A and the isotherm parameters fl an
## Al&met-Potentiodynamic experiments in the range 600-06 mV/s, designed to elucidate the processes by which the zinc electrode in alkali becomes passive, are described. At low overpotentials the dissolution process is a complex solution mechanism in which soluble zincate species leave the electro