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Abstract
The behaviors of PbSO4/Pb and PbO2/PbSO4 electrode prepared from PbCO3 have been examined using powder microelectrode(PME) technique and cyclic voltammetry(CV). Firstly, PMEs packed with PbCO3 transformed into PbSO4 PME in 1.0 mol/L H2SO4 solution at 30 °C, and then the PbSO4 in the PMEs were formed to Pb or PbO2 using an unsymmetrical signal (Qa/Qc for PbSO4/Pb electrode andQc/Qa for PbO2/PbSO4 electrode being 0.1–0.3) in 2.5 mol/L H2SO4 solution. The results show that the CV characteristic of either PbSO4/Pb or PbO2/PhSO4 PME prepared from PbCO2 are as good as that of both electrodes made from lead oxide powder produced by ball mill.
Published Version
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