Preparation and characterization of graded SSC-SDC MIEC cathode for low-temperature solid oxide fuel cells

被引：17

作者：

Chen, Han ^{[1
]}

Cheng, Kui ^{[1
]}

Ye, Fei ^{[1
]}

Weng, Wenjian ^{[1
]}

机构：

[1] Zhejiang Univ, Dept Mat Sci & Engn, State Key Lab Silicon Mat, Hangzhou 310027, Zhejiang, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2011年 / 37卷 / 04期

关键词：

Films; Porosity; Electrical properties; Fuel cells; FABRICATION; PERFORMANCE;

D O I：

10.1016/j.ceramint.2010.11.047

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

081705 [工业催化]; 082905 [生物质能源与材料];

摘要：

Mixed ionic/electronic conductor (MIEC) cathodes with graded composition and microstructures have been fabricated using improved spin-coating technique. Two components, Sm0.2Ce0.8O1.9 (SDC) and Sm0.5Sr0.5CoO3 (SSC), were utilized to prepare the graded MIEC cathode. Graded microstructures, i.e., a SSC-rich outer layer with large interconnected pores and a SDC-rich inner layer with small interconnected pores, were observed. The corresponding single cell had an increase of 13.3% in maximum power density at operating temperature of 600 C. The present work suggests that the graded MIEC cathode has great potential in improving performance of solid oxide fuel cells operated at lower temperature. (C) 2011 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：1209 / 1214

页数：6

共 22 条

[1]

Preparation of Sm0.2Ce0.8O1.9 membranes on porous substrates by a slurry spin coating method and its application in IT-SOFC [J].