Electrochemistry of Nanocrystalline La0.5Sr0.5MnO3 Perovskite for the Oxygen Reduction Reaction in Alkaline Medium

被引：0
|
作者：
Noureddine Khellaf
Abdelkrim Kahoul
Farid Naamoune
Nicolas Alonso-Vante
机构：
[1] Université de Poitiers,IC2MP, UMR CNRS 7285
[2] Université F. Abbas Sétif-1,Laboratoire d’Energétique et d’Electrochimie du Solide
来源：
Electrocatalysis | 2017年 / 8卷
关键词：
Nanoparticles; Pechini method; Perovskite; Oxygen reduction; Alkaline medium;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
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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页码：450 / 458
页数：8
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