Steady-state electrolysis at a grooved or ridged plane |
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Authors: | Keith B Oldham |
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Institution: | (1) Chemistry Department, Trent University, Peterborough, Ontario, K9J 7B8, Canada, CA |
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Abstract: | This study concerns an infinite plane whose smoothness is marred by a single defect: either a groove or a ridge. The blemished
plane serves as an electrode supporting a diffusion-controlled steady-state process. By using a convenient coordinate transformation,
the local current density at all points on the surface is determined exactly. The results are found to confirm intuitive expectations.
Thus, compared with normal values on the plane remote from a groove, the electron transfer rate is diminished within the groove
but enhanced along its margins. Similarly, an abnormally large transfer rate is encountered high on the ridge but the rate
is subnormal on its lower flanks. The total current is demonstrated to be unchanged by the presence of the blemish.
Received: 27 September 1996 / Accepted: 11 March 1997 |
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Keywords: | Electrolysis Current density Groove Ridge |
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