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

被引：10
|
作者：
Khellaf, Noureddine [1 ,2 ]
Kahoul, Abdelkrim [2 ]
Naamoune, Farid [2 ]
Alonso-Vante, Nicolas [1 ]
机构：
[1] Univ Poitiers, CNRS, UMR 7285, IC2MP, 4 Rue Michel Brunet, F-86073 Poitiers, France
[2] Univ F Abbas Setif 1, Lab Energet & Electrochim Solide, Setif 19000, Algeria
来源：
ELECTROCATALYSIS | 2017年 / 8卷 / 05期
关键词：
Nanoparticles; Pechini method; Perovskite; Oxygen reduction; Alkaline medium; COSE2; NANOPARTICLES; EVOLUTION REACTION; CARBON; ELECTROLYTE; PLATINUM; OXIDE; ACID; ORR; ELECTROCATALYSIS; CATALYSTS;
D O I：
10.1007/s12678-017-0397-3
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
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.
引用
收藏
页码：450 / 458
页数：9
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