Single layer fuel cell based on a composite of Ce0.8Sm0.2O2-δ-Na2CO3 and a mixed ionic and electronic conductor Sr2Fe1.5Mo0.5O6-δ

被引：90
|
作者：
Dong, Xiao [1 ]
Tian, Li [1 ]
Li, Jiang [1 ]
Zhao, Yicheng [1 ]
Tian, Ye [1 ]
Li, Yongdan [1 ]
机构：
[1] Tianjin Univ, Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Tianjin Key Lab Appl Catalysis Sci & Technol, State Key Lab Chem Engn,Sch Chem Engn, Tianjin 300072, Peoples R China
来源：
JOURNAL OF POWER SOURCES | 2014年 / 249卷
关键词：
Single layer fuel cell; Composite material; Mixed ionic and electronic conduction; Electrochemical performance; Intermediate temperature; LANTHANUM GALLATE; ANODE MATERIALS; OXIDE; COMPONENT; ELECTROLYTES; SOFC; NANOCOMPOSITES; PERFORMANCE; VALIDATION;
D O I：
10.1016/j.jpowsour.2013.10.045
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：
A new kind of single layer fuel cell (SLFC) based on a composite material of Ce0.8Sm0.2O2-delta(SDC)-Na2CO3 and Sr2Fe1.5Mo0.5O6-delta(SFM) is successfully fabricated and characterized. As a mixed ionic and electronic conductor, SFM provides more reaction areas than the triple phase boundary provided by a simple mixture of ionic conductor and electronic conductor. SDC-Na2CO3 is used to adjust the ratio of ionic and electronic conductivities. The influence of the SFM content on the electrochemical performance of the SLFC is examined. The pellet made of 30 wt.% SFM and 70 wt.% SDC-Na2CO3 exhibits the highest open circuit voltage of 1.05 V and output of 360 mW cm(-2) at 750 degrees C. Besides, by discussing influence factors of the OCV of the cell, the reason why the SLFC can give a similar OCV and output comparing with the conventional three-layer fuel cell, has been explained in detail. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：270 / 276
页数：7
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