Electrodeposition of lead on ITO electrode: influence of copper as an additive

The reversible electrodeposition of metallic lead onto indium-tin oxide coated glass (ITO) was investigated and the influence of Cu(NO 3) 2·3H 2O as additive was evaluated. The presence of Cu 2+ in the electrolytic solution produces a higher variation in the optical transmissivity. The optical respo...

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Bibliographic Details
Published in:Electrochimica acta 2005, Vol.50 (6), p.1317-1321
Main Authors: Avellaneda, César O., Napolitano, Marcos A., Kaibara, Evandro K., Bulhões, Luis O.S.
Format: Article
Language:English
Subjects:
Chemistry
Electrochemistry
Electrochromism
Electrodeposition
Exact sciences and technology
General and physical chemistry
Impedance spectroscopy
Study of interfaces
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Summary:The reversible electrodeposition of metallic lead onto indium-tin oxide coated glass (ITO) was investigated and the influence of Cu(NO 3) 2·3H 2O as additive was evaluated. The presence of Cu 2+ in the electrolytic solution produces a higher variation in the optical transmissivity. The optical response of the system changes from 85 to 10% relative to the ITO coated substrate. The kinetics of the electroreduction process of the Pb 2+ and Cu 2+ from the electrolytes has been determined by electrochemical impedance spectroscopy (EIS) at different electrodeposition potentials. This system may be a promising candidate for electrochromic materials.
ISSN:0013-4686
1873-3859
DOI:10.1016/j.electacta.2004.08.021