Nanostructured Gd0.8Sr0.2Fe0.8M0.2O3 (M = Cr, Ga) Materials for Solid Oxide Fuel Cell Cathodes

被引：5

作者：

Ruiz de Larramendi, I. ^{[1
]}

Pinedo, R. ^{[1
]}

Ortiz-Vitoriano, N. ^{[1
]}

Ruiz de Larramendi, J. I. ^{[1
]}

Arriortua, M. I. ^{[2
]}

Rojo, T. ^{[1
]}

机构：

[1] Univ Pais Vasco UPV EHU, Dept Quim Inorgan, Apdo 644, Bilbao 48080, Spain

[2] Univ Pais Vasco UPV EHU, Dept Mineralogia Petrologia, Bilbao 48080, Spain

来源：

VI ENCUENTRO FRANCO-ESPANOL DE QUIMICA Y FISICA DEL ESTADO SOLIDO - VI RENCONTRE FRANCO-ESPAGNOLE SUR LA CHIMIE ET LA PHYSIQUE DE L ETAT SOLIDE | 2010年 / 8卷

关键词：

impedance spectroscopy; perovskite; nanowire;

D O I：

10.1016/j.phpro.2010.10.002

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：

Polycrystalline samples of Gd0.8Sr0.2Fe0.8M0.2O3 (M = Cr, Ga) are prepared by combustion route and pore wetting technique in order to compare the influence of the morphology in the performance of two cathodes for Solid Oxide Fuel Cells. When polycarbonate membranes are used as templates nanowire arrays with a diameter of 50-70 nm are obtained. Comparing the results obtained by Electrochemical Impedance Spectroscopy (EIS) measurements, it is clearly observed that the cathodic resistance considerably decreases when optimized synthesis parameters are used, obtaining a better performance for the Gd0.8Sr0.2Fe0.8Ga0.2O3 nanowires with an area specific resistance (ASR) value at 850 degrees C of 0.195 Omega.cm(2). (C) 2010 Published by Elsevier Ltd.

引用

页码：2 / 9

页数：8

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