Electrochemical Reduction of Oxygen and Nitric Oxide on Mn-Based Perovskites with Different A-Site Cations

<div>The response in the form of voltammograms from the four manganite-based perovskite-based cone-shaped electrodes in 1% NO in Ar at 200 C with a sweep rate of 1 mV/s. A large difference is observed between the four manganite-based perovskites. The LaMnO<sub>3+<i>δ</i></sub> perovskite is by the far the most active. The activities of the SmMnO<sub>3+<i><u>δ</u></i></sub> and GdMnO<sub>3+<i>δ</i></sub> perovskites are almost identical.</div>

International Journal of Electrochemistry

fig5

Figure 5

Figure 5: Electrochemical Reduction of Oxygen and Nitric Oxide on Mn-Based Perovskites with Different A-Site Cations 