Effects of solution resistance and double layer capacity on the faradaic polarization of an electrochemical cell
β Scribed by Gerald F. Thomas; John M. Raycheba
- Publisher
- Elsevier Science
- Year
- 1988
- Tongue
- English
- Weight
- 205 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0013-4686
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β¦ Synopsis
The basis of a method which allows one to investigate the kinetics of corrosion processes in systems exhibiting an uncompensated solution resistance and whose anodic and cathodic reactions have current-voltage behaviors described by the Butler-Volmer relation is presented. Compared to weight-loss measurements or dc techniques, the faradaic distortion method[l, 23 allows for very rapid and reliable assessment of the corrosion rate and Tafel slopes governing the current-voltage characteristics of an electrochemical cell. The method involves perturbing the system with a potentiostatically controlled sinusoidal voltage of fixed angular frequency w and of amplitude U. superimposed on the
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