摘要
采用柠檬酸络合-硝酸盐燃烧法合成的BaCo_(0.4)Fe_(0.4)Zr_(0.1)Y_(0.1)O_(3-δ)(BCFZY)作为空气电极材料,组装了燃料电极支撑的可逆质子陶瓷膜电池(R-HCMC),并且探讨了单电池在不同工作模式下的电化学性能。结果表明:在900℃下合成的BCFZY表现为单一立方钙钛矿结构,在700℃燃料电池模式下,单电池最大输出功率为424.7 mW·cm^(-2)、最低的极化阻抗为0.23Ω·cm^(2);在电解模式下,电解电压为1.4 V时,最大电流密度为1084 mW·cm^(-2)、氢气产率为3.1 mL·min^(-1)·cm^(-2)。说明,BCFZY空气电极在中低温条件下表现出良好的电催化活性和结构与性能稳定性。
BaCo_(0.4)Fe_(0.4)Zr_(0.1)Y_(0.1)O_(3-δ)(BCFZY)was synthesized by the citric acid complexation-nitrate combustion method,and then used as the air electrode material to fabricate a fuel electrode-supported reversible proton ceramic membrane cell(RHCMC).The electrochemical performance of obtained R-HCMC under different operating modes was investigated.The results show that the BCFZY synthesized at 900℃exhibits a single cubic perovskite structure.I n fuel cell mode at 700℃,the maximum output power was 424.7 mW·cm^(-2),and the lowest polarization impedance was 0.23Ω·cm^(2).In the electrolysis mode,when the electrolysis voltage is 1.4 V,the maximum current density was 1084 mW·cm^(-2),and the hydrogen production rate was 3.1 mL·min^(-1)·cm^(-2).The prepared BCFZY air electrode showed good electrical catalytical activity,and structure and performance stabilities under medium and low temperature conditions.
作者
宋雅雯
张小珍
周成志
袁列鹏
王禧斌
SONG Yawen;ZHANG Xiaozhen;ZHOU Chengzhi;YUAN Liepeng;WANG Xibing(School of Materials Science and Engineering,Jingdezhen Ceramic University,Jingdezhen 333403,China)
出处
《材料研究与应用》
CAS
2024年第1期24-30,共7页
Materials Research and Application
基金
江西省教育厅科学技术研究项目(GJJ211303)
景德镇陶瓷大学研究生创新基金(JYC202126)
江西省大学生创新训练计划项目(S202210408036)。
关键词
可逆陶瓷膜电池
质子导体
极化电阻
输出功率
产氢率
电化学性能
燃烧法
电极材料
reversible ceramic membrane cell
proton conductor
polarization resistance
output power
hydrogen production rate
electrochemical performance
combustion method
electrode material
