Evaluation of Electrodeposited Lead Dioxide


The morphology and phase composition of lead dioxide anodically deposited from various electrolytes was determined as a function of operating parameters. A brittle and rough faceted lead dioxide coating was obtained from lead nitrate electrolytes. The deposit was non-porous and adhered well to a graphite substrate but not to a titanium substrate. A low acid lead nitrate electrolyte with sodium lauryl sulfate additive gave a desirable nonporous, fine faceted lead dioxide coating and improved the adherence of the lead dioxide coating on a titanium substrate. Lead dioxide plated from lead nitrate electrolytes consisted mainly of β- PbO2 and to a lesser extent the α-PbO2 modification. PbO2 plated from a lead fluoborate electrolyte with animal glue as the additive resulted in a non-porus deposit. The deposit was found to adhere well to a graphite substrate and consisted mainly of β-PbO2. Lead dioxide plated from lead fluosilicate and was rather amorphous in appearance. The various lead dioxides showed some differences in polarization behaviour in lead fluosilicate.


Materials Science and Engineering

Keywords and Phrases

Anodes and electrodeposition; Lead dioxide

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Document Type

Article - Journal

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Publication Date

01 Oct 1996

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