Potentials of Silver and Gold Electrodes of ZrO2-Based Cells in N2+ O2+ CO2+ CO Gas Mixtures |
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| Authors: | Fadeev G. I. Remez I. D. |
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| Affiliation: | (1) Institute of High-Temperature Electrochemistry, Ural Division, Russian Academy of Sciences, ul. S. Kovalevskoi 20, Yekaterinburg, 620219, Russia |
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| Abstract: | Steady-state electrode potentials in cells with a ZrO2+ 10 mol % Y2O3electrolyte are measured at 400 to 500°C in nonequilibrium N2+ O2+ CO2+ CO gas mixtures containing 0–3 and 0–10 vol % of CO and O2, respectively. In CO-free mixtures, the potentials obey the Nernst equation. The CO-caused deviation of the potential from its equilibrium value depends on the O2content and temperature and is due mainly to the CO adsorption at electrodes. |
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