Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1228391 | Microchemical Journal | 2007 | 9 Pages |
Abstract
Potentiostatic current oscillations were observed during electrodissolution of a helical coiled copper wire electrode in acidic sodium chloride when nitrogen was sparged through the solution. The oscillations were studied as a function of solution pH, chloride ion concentration and sparging rate over the potential range of 0.2 to 0.7 V versus Ag/AgCl (3 M NaCl). The surface morphology of the copper was observed during the oscillatory process using in situ, real-time optical microscopy, and the formation of a surface film was correlated with the oscillations.
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Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Qingzhou Cui, Howard D. Dewald,