A new symmetric solid-oxide fuel cell with La0.8Sr0.2Sc0.2Mn0.8O3-δ perovskite oxide as both the anode and cathode

被引：156
|
作者：
Zheng, Yao [1 ]
Zhang, Chunming [1 ]
Ran, Ran [1 ]
Cai, Rui [1 ]
Shao, Zongping [1 ]
Farrusseng, D. [2 ]
机构：
[1] Nanjing Univ Technol, Coll Chem & Chem Engn, State Key Lab Oriented Chem Engn, Nanjing 210009, Peoples R China
[2] Univ Lyon 1, CNRS, IRCELYON, Inst Rech Catalyse & Environm Lyon,UMR 5256, F-69626 Villeurbanne, France
来源：
ACTA MATERIALIA | 2009年 / 57卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Perovskite; Symmetrical cell; Redox stability; Oxygen reduction; Solid-oxide fuel cell; SR-DOPED LAMNO3; ELECTROCHEMICAL PERFORMANCE; STABILIZED ZIRCONIA; OXYGEN REDUCTION; DIRECT-OXIDATION; ELECTRODES; METHANE; SOFC; BEHAVIOR; DEFECT;
D O I：
10.1016/j.actamat.2008.10.047
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A novel perovskite-type La0.8Sr0.2Sc0.2Mn0.8O3 (LSSM) oxide was synthesized and evaluated as the electrode material of a symmetric solid-oxide fuel cell. Characterization was done by electrical conductivity, crystal structure stability, redox stability. catalytic activity for methane oxidation and oxygen electro-reduction. LSSM shows greater electrical conductivity than the typical La0.8Sr0.2Cr0.5Mn0.5O3 (LSCM) perovskite Oxide under both anode and cathode operating conditions. It also shows excellent chemical and Structural stability due to the backbone effect of Sc3+ for the perovskite lattice structure. A symmetric electrolyte-supported cell with 0.3 mm thick scandium-stabilized zirconia electrolyte and LSSM as cathode and anode shows peak power densities of 310 and 130 mW cm(2) at 900 degrees C. respectively, when operating on wet H-2 and wet CH4. Stable performance is demonstrated. (C) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：1165 / 1175
页数：11
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