Hydrothermal synthesis, characterization and electrocatalytic activity of La0.8Sr0.2MnO3 nanocubes for oxygen reduction reaction

被引：5

作者：

Joshi, Upendra A. ^{[1
]}

Lee, Jae Sung ^{[1
]}

机构：

[1] Pohang Univ Sci & Technol, POSTECH, Dept Chem Engn, San 31 Hyoja Dong, Pohang 790784, South Korea

来源：

NANOCOMPOSITES AND NANOPOROUS MATERIALS | 2007年 / 119卷

关键词：

nanocatalysts; manganites; electrocatalysts; oxygen reduction; perovskite;

D O I：

10.4028/www.scientific.net/SSP.119.275

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The La0.8Sr0.2MnO3 nanocubes have been synthesized by simple precipitation followed by hydrothermal process. The as-obtained nanocubes were characterized by SEM, TEM, EDS, XRD and ICP-AA. The SEM and TEM images clearly showed cube type morphology of reaction product. The XRD pattern gave evidence for the phase purity and high crystallinity of the La0.8Sr0.2MnO3 nanocubes. The ICP-AA analysis along with EDS confirms the stoichiometry of the product. Electrochemical activity for oxygen reduction reaction was carried out in 1 M KOH. The oxygen reduction current measured by cyclic voltametry showed six times higher value for nanocubes than that of bulk catalysts of same composition.

引用

页码：275 / +

页数：2

共 6 条

[1] The mechanism of oxygen reduction on MnO2-catalyzed air cathode in alkaline solution [J].