Abstract
Direct numerical simulation of nucleation and three-dimensional growth is used to examine the impact on chronoamperometry measurements of growth that is not diffusion controlled at all times. Results are given for a range of nucleation rates. It is shown that deviation from diffusion-controlled growth can significantly modify not only the quantitative interpretation of the transients but can impact the qualitative signatures that are used to distinguish between instantaneous and progressive nucleation. The influence of ohmic-potential losses on chronoamperometry response is also demonstrated. © 2002 The Electrochemical Society. All rights reserved.
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