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Electrochemical generation of ozone at PbO2-loaded platinum screens

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Abstract

Ozone (O3) has been electrochemically generated on PbO2-loaded Pt screens (PbO2/Pts) at 25 °C from H2SO4 solutions. The PbO2/Pts electrodes were electrochemically and morphologically characterized by cyclic voltammetry and scanning electron microscopy (SEM), respectively. Different loadings of PbO2 and different acid concentrations (C acid) were used in this study. Higher efficiency (8%) for O3 electrogeneration was obtained at an applied potential of 1.8 V, higher C acid, and loading density of PbO2 ≥ 9.3 μmol cm−2 (of Pt screen) at room temperature. The stability of the prepared electrode was examined under the present experimental conditions. SEM images and current transients showed reasonable electrochemical and mechanical stability of the PbO2/Pts. The data were discussed in the light of results obtained on planar Pt electrode at similar conditions.

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Authors and Affiliations

  1. Chemistry Department, Faculty of Science, Cairo University, Cairo, Egypt

    Mohamed I. Awad & Mahmoud M. Saleh

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  1. Mohamed I. Awad
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  2. Mahmoud M. Saleh
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Correspondence to Mohamed I. Awad.

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Awad, M.I., Saleh, M.M. Electrochemical generation of ozone at PbO2-loaded platinum screens. J Solid State Electrochem 14, 1877–1883 (2010). https://doi.org/10.1007/s10008-010-1030-z

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  • DOI: https://doi.org/10.1007/s10008-010-1030-z

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