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Haishen Kong, Weimin Huang, Haibo Lin, Haiyan Lu and Wenli Zhang Effect of SnO2-Sb2O5 Interlayer on Electrochemical Performances of a Ti-Substrate Lead Dioxide Electrode Chinese Journal of Chemistry 30

Version of Record online: 25 SEP 2012 | DOI: 10.1002/cjoc.201200627

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The figure shows Nyqusit diagrams of (1) Ti/PbO2 and (2) Ti/SnO2-Sb2O5/PbO2 electrodes in the complex plane as a function of electrolysis time. (a1) 0 h, (b1) 6 h, (c1) 13.5 h, (d1) 14 h; (a2) 0 h, (b2) 10 h, (c2) 141 h, (d2) 142 h. From above experimental results, we deduce that the presence of the SnO2-Sb2O5 interlayer can reduce the Rf (resistance through the oxide layer) and Rct (charge transport resistance at the interface), which indicates that the conductivity of the electrode and electrochemical activity of oxygen evolution for the Ti/SnO2-Sb2O5/PbO2 electrode are higher than those of the Ti/PbO2 electrode.

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