NICKEL-BASED LAYERED PEROVSKITE CATHODE MATERIALS FOR APPLICATION IN INTERMEDIATE-TEMPERATURE SOLID OXIDE FUEL CELLS

被引：15
|
作者：
Han, Juan [1 ]
Zheng, Kun [1 ]
Swierczek, Konrad [2 ]
机构：
[1] AGH Univ Sci & Technol, Fac Mat Sci & Ceram, PL-30059 Krakow, Poland
[2] AGH Univ Sci & Technol, Fac Energy & Fuels, PL-30059 Krakow, Poland
来源：
FUNCTIONAL MATERIALS LETTERS | 2011年 / 4卷 / 02期
关键词：
Ruddlesden-Popper layered perovskites; structural studies; oxygen nonstoichiometry; transport properties; IT-SOFC;
D O I：
10.1142/S1793604711001853
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this work we present results of structural (XRD) and microstructural (SEM) characterization, as well as determination of transport properties (electrical conductivity, Seebeck coefficient) and oxygen nonstoichiometry as a function of temperature for La2NiO4+delta, Nd2NiO4+delta and Pr2NiO4+delta layered perovskites, promising cathode materials for application in intermediate-temperature solid oxide fuel cells (IT-SOFCs). In addition to characterization of physico-chemical properties, the obtained materials were used as cathodes in custom made, electrolyte-supported IT-SOFCs. Electrochemical performance and impedance spectroscopy (EIS) measurements were performed on the cells in 600-850 degrees C temperature range. The obtained maximum power densities, exceeded 0.2 W.cm(-2) at 800 degrees C.
引用
收藏
页码：151 / 155
页数：5
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