Abstract
Nanocrystalline La0.5Sr0.5MnO3 (LSMO) perovskite-sized powders were successfully synthesized at heating low temperature and time using the Pechini method based on polyesterification between citric acid and ethylene glycol. The electroactivity of carbon-supported perovskite (LSMO/C) for the oxygen reduction reaction (ORR) was evaluated. The results showed that the electroactivity of LSMO/C largely depends on the calcination temperature, type of electrolyte, and mass loading. It increased remarkably with the calcination temperature in 0.1 M KOH. The ORR performance was examined in KOH, NaOH, and K2SO4. Higher electroactivity was recorded in KOH electrolyte, as compared to NaOH and K2SO4.
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This research was financially supported by the “Accord-programme algéro-français: Projet Tassili N°14MDU911.” The support is greatly acknowledged.
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Khellaf, N., Kahoul, A., Naamoune, F. et al. Electrochemistry of Nanocrystalline La0.5Sr0.5MnO3 Perovskite for the Oxygen Reduction Reaction in Alkaline Medium. Electrocatalysis 8, 450–458 (2017). https://doi.org/10.1007/s12678-017-0397-3
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DOI: https://doi.org/10.1007/s12678-017-0397-3