Effect of La doping on the electrochemical activity of double perovskite oxide Sr2FeMoO6 in alkaline medium

被引：21

作者：

Azizi, F. ^{[1
]}

Kahoul, A. ^{[1
]}

Azizi, A. ^{[1
]}

机构：

[1] Univ F Abbas Setif, Lab Energet & Electrochim Solide, Setif 19000, Algeria

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 484卷 / 1-2期

关键词：

Double perovskite; La doping; Electrochemical activity; Surface area; Resistivity; TRANSITION-METAL OXIDES; OXYGEN REDUCTION; MAGNETIC-PROPERTIES; AIR BATTERY; LA1-XCAXCOO3; ELECTRODE; CATALYST; ELECTROCATALYSIS;

D O I：

10.1016/j.jallcom.2009.04.143

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：

The crystalline structure, grain morphology, electrical and electrochemical properties of Sr2-xLaxFeMoO6 (x = 0, 0.25, 0.5 and 1) double perovskite has been investigated by means of X-ray powder diffraction, scanning electron micrography, electrical and electrochemical measurements. It was found that the grain morphology, the resistivity and the electrochemical activity are strongly influenced by La doping. While the surface area as the determining factor in the oxygen reaction rate was excluded, the electrical resistivity was found to have a great effect on the electrochemical activity of the compounds. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：555 / 560

页数：6

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