Application of La0.3Sr0.7Fe0.7Ti0.3O3-δ/GDC electrolyte in LT-SOFC

被引：21
|
作者：
Zhou, Xiaomi [1 ]
Zhou, Fen [1 ]
机构：
[1] Inner Mongolia Univ Sci & Technol, Sch Mat & Met, Baotou 014010, Peoples R China
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2021年 / 46卷 / 15期
基金：
中国国家自然科学基金;
关键词：
Low temperature solid oxide fuel cell; La0.3Sr0.7Fe0.7Ti0.3O3-delta/GDC-DC composite; Ionic-semiconductor electrolyte;
D O I：
10.1016/j.ijhydene.2020.01.171
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：
Recently semiconductor-ionic electrolytes have capture much attentions for its promising application in low temperature solid oxide fuel cells. In this paper, semiconductor La0.3Sr0.7Fe0.7Ti0.3O3-delta (LSTF) and ionic Ce0.9Gd0.1O2-delta (GDC) composites are investigated. The new composite consisting of LSTF and GDC are used as ionic-semiconductor electrolytes for LT-SOFC. It was found that when the ratio of LSTF to GDC was 5:5, the performance of the fuel cell is the best. The open circuit voltage is 0.92 V, and the power density is 654 mW cm(-2) at 600 degrees C. Its electrical performance is much higher than that of traditional SOFC at low temperature. The energy band of different semiconductor is discussed by using optical equipment. (C) 2020 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：9988 / 9995
页数：8
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