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Electrolytic nucleation of cadmium

✍ Scribed by S. Toschev; I. Markov


Publisher
Elsevier Science
Year
1967
Tongue
English
Weight
240 KB
Volume
12
Category
Article
ISSN
0013-4686

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✦ Synopsis


Ahstraet--A method is described which makes it possible to determine directly the probability of the electrolytic formation of a single nucleus of cadmium on platinum and its variance with time and overvoltage. It is shown that the nucleation times are dispersed around median values characteristic for a given overvoltage according to the Gauss distribution law. The median times are related to the overvoltage as predicted by the nucleation theory. However, difficulties arise in the quantitative interpretation of the results on the basis of the classical liquid drop model for heterogeneous nucleation.

R6sum6---On d6crit une m6thode qui permet de d&erminer directement la probabilit6 de la formation 61ectrolytique d'un seul germe de cadmium sur platine ainsi clue la d6pendance de cette probabilit6 par rapport au temps et ~ la surtension. On montre queles temps de germinationpourchaquesurtension sont dispers6s d'une mani6re statistique autour des valeurs moyennes selon la loi distributive de Gauss. La d6pendance des temps moyens de la surtension suit la relation donn6e par la th6orie de la germination. Cependant des difficult6s apparaissent lors de l'interpretation quantitative des r6sultats du point de vue du module classique de la germination h6t6rog~ne.

Zusarnmenfassung--


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