✦ LIBER ✦

Distribution and laser-induced behavior of lead monooxide on lead electrodes in acid solution

✍ Scribed by Y. Yang; X.G. Chen; Z.G. Lin

Publisher: Elsevier Science
Year: 1996
Tongue: English
Weight: 740 KB
Volume: 41
Category: Article
ISSN: 0013-4686
DOI: 10.1016/0013-4686(95)98494-9

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✦ Synopsis

The distribution and laser-induced behaviour of PbO on lead electrodes have been investigated using photoelectrochemical microscopic (PEM) and cyclic voltammetric techniques. A linear relationship between the potential of the reduction peak for lead monooxide and the pre-oxidation time of the electrodes was obtained at low potential-sweep rates. This result implies that the changes of pH within the inner anodic films could be estimated using the electrochemical method. Some interesting photocurrent characteristics of "laser-induced" oxide "islands" have been observed. In addition, a linear growth mode of PbO has been found at an early stage of growth of the anodic films using a "line-scan" method in the PEM technique.

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