The Electrocrystallization of Cobalt

For modeling current-time transients, the first-order nudeation law Ai = [1 -exp(-A t)] has been used as a general form, or = A/q[1 - exp(-A t)] as a specific form when the 

When using theoretical current-time transients. The following points must be borne in mind  

It has been noted previously [6, 14] (and also in this chapter) that nucleation is always a progressive process except that, for a fast nucleation (the so-called instantaneous nucleation), nuclei are forming so fast that it is 60-fold more likely for a given site to be covered by the act of nucleation than by the act of growth. It is, therefore, simply incorrect to relate fast nucleation to a scenario in which the number of nuclei on the 

Finally, it is appropriate to refer to the last two publications of Martin Fleischmann [3,4], which incidentally happened to be on the subject of nucleation. In these papers, he sought to establish an approach to nucleation based on quantum electrodynamics, and built on an earlier conference presentation by the late Preparata [32], Whilst this is an exciting development, it remains to be seen whether others will seek to build on these investigations. 

Fleischmann, M. and Thirsk, H.R. (1955) An investigation of electrochemical kinetics at constant overpotential - the behaviour of the lead dioxide electrode. Transactions of the Faraday Society, 51, 71. 

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Figure 3.15 The closest fit (—) of the current-time transient derived for the "fast" nudeation and paraboloidal forms of growth with concurrent evolution of hydrogen (Equation 3.19 of Ref. [18]), to the recorded transient ( ) for the electrocrystallization of cobalt at -0.9 V the solution composition was as in figure 3.13.

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