Semiconductor ionic based Sm0.2Ce0.8O2_δ-La0.6Sr0.4Fe0.8Cu0.2O3-δ heterostructure for low temperature ceramic fuel cells

被引：8

作者：

Zhang, Yifei ^{[1
]}

Yousaf, Muhammad ^{[1
]}

Yang, Xinlei ^{[1
]}

Liu, Jingjing ^{[1
]}

Wang, Hao ^{[1
]}

Yang, Fan ^{[1
,2
]}

机构：

[1] Southeast Univ, Sch Energy & Environm, Jiangsu Prov Key Lab Solar Energy Sci & Technol, Nanjing 210096, Peoples R China

[2] Southeast Univ, Sch Energy & Environm, Minist Educ, Key Lab Energy Thermal Convers & Control, Nanjing 210096, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2022年 / 48卷 / 02期

基金：

中国国家自然科学基金;

关键词：

SDC-LSFC; Semiconductor ionic fuel cell; Short-term stability; Heterostructure; OXIDE; ELECTROLYTE; TECHNOLOGY; COMPOSITE; CATHODE; LAYER;

D O I：

10.1016/j.ceramint.2021.09.288

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Structural design/doping strategy is an efficient method to prepare electrolytes with high oxygen ionic conductivity, but there is still hindrance for solid oxide fuel cell (SOFC) commercialization. Recent advances in semiconductor ionic materials have developed a novel strategy in designing low-temperature electrolyte materials. Here, a heterostructure composite of LSFC (La0.6Sr0.4Fe0.8Cu0.2O3-8) and SDC (Sm0.2Ce0.8O2_8) is developed. The LSFC-SDC composite exhibits a high ionic conductivity, >0.1S/cm at 550 degrees C. With symmetrical NCAL (Ni0.8Co0.15Al0.05LiO2-8)-coated electrode, cells with SDC-LSFC electrolyte exhibit high open-circuit voltage (OCV), and achieve a significant power improvement (>1000 mW/cm2) compared with pure SDC electrolyte at 550 degrees C. The short-term stability result has proven the operating ability of SDC-LSFC electrolyte under fuel cell environment (H2/air). This work demonstrates a new developing route of low-temperature solid oxide fuel cell (LTSOFC), which is different from the conventional SOFC.

引用

页码：2031 / 2037

页数：7

共 26 条

[1] Investigation of layered Ni0.8Co0.15Al0.05LiO2 in electrode for low-temperature solid oxide fuel cells [J].