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Published in: Journal of Materials Science 18/2012

01-09-2012

Performance characterization of Ti substrate lead dioxide electrode with different solid solution interlayers

Authors: Haishen Kong, Haiyan Lu, Wenli Zhang, Haibo Lin, Weimin Huang

Published in: Journal of Materials Science | Issue 18/2012

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Abstract

In this study, Ti substrate was coated by three different mixed oxides (SnO2–Sb2O5, RuO2–TiO2, IrO2–Ta2O5), then PbO2 was electrodeposited on them to prepare PbO2 electrode. The microstructure of the solid solution interlayers and PbO2 coatings was characterized by scanning electronic microscopy and X-ray diffraction. The results indicated that the above oxides interlayer exited in the form of solid solution and the interlayer covered the Ti substrate largely. Accelerated life test proved that the presence of solid solution interlayer can increase the stability of PbO2 electrodes in electrolysis. Cyclic voltammogram indicated that the PbO2 electrode with the solid solution interlayer have more active surface area in sulfuric acid solution. Linear scanning voltammograms showed that the over potentials of the oxygen evolution are decreased with the addition of the solid solution interlayer. Electrochemical impedance spectroscopy showed that the presence of interlayer can increase the electrochemical activity of oxygen evolution reaction and electrical conductivity.

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Metadata
Title
Performance characterization of Ti substrate lead dioxide electrode with different solid solution interlayers
Authors
Haishen Kong
Haiyan Lu
Wenli Zhang
Haibo Lin
Weimin Huang
Publication date
01-09-2012
Publisher
Springer US
Published in
Journal of Materials Science / Issue 18/2012
Print ISSN: 0022-2461
Electronic ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-012-6613-x

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