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Kinetics and mechanism of the silver (I) oxide to silver (II) oxide layer electrooxidation reaction

✍ Scribed by R.C. Salvarezza; J. Gómez Becerra; A.J. Arvia

Publisher
Elsevier Science
Year
1988
Tongue
English
Weight
594 KB
Volume
33
Category
Article
ISSN
0013-4686

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✦ Synopsis

Ah&act-The electroformation of Ag(II) oxide layer during the anodization of silver in 0.1 M NaOH is investigated under potentiostatic and potentiodynamic conditions. Results are discussed in terms of nucleation and growth models and statistical analysis ofinduction times related to the nucleation kinetics of Ag(II) oxide crystals. The best fitting of results comes out from the application of a progressive nucleation and 3-D growth model under mass transfer control where diffusion of species from the electrode to growing sites is essential for further expansion.

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