SOFC电解质材料La0.8Sr0.2Ga0.8-xMg0.2CoxO3-δ的制备及性能#br#

吉林大学学报(理学版) ›› 2020, Vol. 58 ›› Issue (1): 162-165.

SOFC电解质材料La_0.8Sr_0.2Ga_0.8-xMg_0.2Co_xO_3-δ的制备及性能#br#

张国栋^1, 王欢^1, 王利行^1, 常笑鹏^1, 宋浩冉^1, 骆泽阳¹, 徐培¹, 王德军²

1. 长春大学理学院材料设计与量子模拟重点实验室, 长春 130022; 
2. 长春大学研究生院, 长春 130022

收稿日期:2019-07-09 出版日期:2020-01-26 发布日期:2020-01-12
通讯作者: 王德军 E-mail:272951353@qq.com

Preparation and Performance of La_0.8Sr_0.2Ga_0.8-xMg_0.2Co_xO_3-δElectrolytes for SOFC#br#

ZHANG Guodong^1, WANG Huan^1, WANG Lihang^1, CHANG Xiaopeng^1, SONG Haoran^1, LUO Zeyang^1, XU Pei^1, WANG Dejun²#br#

1. Key Laboratory of Materials Design and Quantum Simulation, College of Science, Changchun University, Changchun 130022, China; 2. Graduate College, Changchun University, Changchun 130022, China

Received:2019-07-09 Online:2020-01-26 Published:2020-01-12
Contact: WANG Dejun E-mail:272951353@qq.com

摘要/Abstract

摘要： 利用甘氨酸硝酸盐燃烧法制备不同浓度Co掺杂的La_0.8Sr_0.2Ga_0.8-xMg_0.2Co_xO_3-δ固体氧化物燃料电池电解质材料, 并对其晶体结构、形貌以及电学性能进行表征. 结果表明: 随着Co掺杂量的增加, 样品无明显杂相峰, 其谱峰略向小角度一侧移动, 晶胞体积略增大,
平均粒径逐渐减小; Co掺杂对电导率影响显著, 晶粒电导率是导致样品总电导率升高的主要因素.

关键词: 固体氧化物燃料电池, 电解质, 甘氨酸硝酸盐燃烧法, 晶胞体积

Abstract: TheLa_0.8Sr_0.2Ga_0.8-xMg_0.2Co_xO_3-δ electrolytes for solid oxide fuel cell (SOFC) with different concentrations of Co were prepared by glycinenitrate combustion method, and the crystal structure, morphology and electrical properties were characterized. The results show that, with the increase of Co doping, there is no obvious heterophase peak in the sample, the spectral peaks shift slightly to the side of small angle, the cell volume increases slightly, and the average partical size decre
ases gradually. Co doping has a siginificant effect on the conductivity, and the grain conductivity is the key factor to increase the total conductivity of the sample.

Key words: solid oxide fuel cell (SOFC), electrolyte, glycinenitrate combustion method, cell volume

中图分类号:

TB39

张国栋, 王欢, 王利行, 常笑鹏, 宋浩冉, 骆泽阳, 徐培, 王德军. SOFC电解质材料La_0.8Sr_0.2Ga_0.8-xMg_0.2Co_xO_3-δ的制备及性能#br#[J]. 吉林大学学报(理学版), 2020, 58(1): 162-165.

ZHANG Guodong, WANG Huan, WANG Lihang, CHANG Xiaopeng, SONG Haoran, LUO Zeyang, XU Pei, WANG Dejun. Preparation and Performance of La_0.8Sr_0.2Ga_0.8-xMg_0.2Co_xO_3-δElectrolytes for SOFC#br#[J]. Journal of Jilin University Science Edition, 2020, 58(1): 162-165.

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[5]	荆波,吕喆,许大鹏,苏文辉. 中温SOFC阴极材料La_0.7Sr_0.3Co_1-xCu_xO_3-δ的制备及性能[J]. J4, 2005, 43(05): 650-653.
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