Potential step chronoamperometry at the wall-jet electrode: experimental

Experimental verification of the theory for the transient current response of a wall-jet electrode to a potential step is given. The systems studied are ferrocyanide and bromide oxidation in a specially designed large volume cell. Good and reproducible agreement between diffusion coefficients determ...

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Bibliographic Details
Published in:Journal of electroanalytical chemistry (Lausanne, Switzerland) Switzerland), 1992-09, Vol.334 (1), p.57-64
Main Authors: Brett, Christopher M.A., Oliveira Brett, Ana Maria C.F., Fisher, Adrian C., Compton, Richard G.
Format: Article
Language:English
Subjects:
Chemistry
Electrochemistry
Exact sciences and technology
General and physical chemistry
Study of interfaces
Transport phenomena
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Summary:Experimental verification of the theory for the transient current response of a wall-jet electrode to a potential step is given. The systems studied are ferrocyanide and bromide oxidation in a specially designed large volume cell. Good and reproducible agreement between diffusion coefficients determined by this method and independent techniques is found. Optimized conditions, to avoid on the one hand the necessity of subtracting double-layer charging currents and on the other radial diffusion contributions, are defined.
ISSN:1572-6657
1873-2569
DOI:10.1016/0022-0728(92)80560-Q