Effects of synthesis conditions on the electrochemical activity of titanium anodes with iridium oxide coating |
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| Authors: | I A Velikanova N P Ivanova I M Zharskii |
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| Institution: | (1) Belarus State Technological University, ul. Sverdlova 13a, Minsk, 220050, Belarus |
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| Abstract: | The effects of temperature, heat treatment time, and iridium content in the active layer on the electrocatalytic activity of titanium anodes with active coating during oxygen evolution in 0.5 M sulfuric acid have been investigated. The highest activity of these electrodes is reached when the temperature of final treatment is 450°C, treatment time is 25 min, and iridium content in the active layer is over 2 g/cm2. An X-ray photoelectron spectroscopy study showed that iridium is predominantly in the tetravalent oxidized state in the active layer. |
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| Keywords: | coatings iridium oxides titanium anode anode polarization electrocatalytic activity thermal treatment |
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