固体氧化物燃料电池复合阴极PrCoO_(3)@LSCF的制备及性能研究  

Preparation and properties of composite cathode PrCoO_(3)@LSCF for solid oxide fuel cells

作　　者：姚传刚 陈思庚 张海霞[1] 杨继兴 YAO Chuangang;CHEN Sigeng;ZHANG Haixia;YANG Jixing(College of Chemistry and Materials Engineering,Bohai University,Jinzhou 121013,China)

机构地区：[1]渤海大学化学与材料工程学院,辽宁锦州121013

出　　处：《渤海大学学报（自然科学版）》2021年第4期289-293,共5页Journal of Bohai University:Natural Science Edition

基　　金：国家自然科学基金项目(No:21805013);辽宁省自然科学基金项目(No:2019-BS-006)。

摘　　要：为改善La_(0.6)Sr_(0.4)Co_(0.2)Fe_(0.8)O_(3)(LSCF)阴极的电化学催化性能,通过浸渍工艺制备了PrCoO_(3)(PCO)纳米粒子修饰的PCO@LSCF阴极,采用X射线衍射、扫描电子显微镜、电化学交流阻抗对材料的结构和性能进行表征.结果表明,LSCF的表面被PCO纳米粒子修饰后,650℃阴极的极化阻抗降低了10%,电化学性能得到有效提升.PCO@LSCF cathode was prepared by impregnating PrCoO_(3)(PCO)nanoparticles into La_(0.6)Sr_(0.4)Co_(0.2)Fe_(0.8)O_(3)(LSCF)cathode in order to improve its electrochemical catalytic performance.The structure and properties of PCO@LSCF cathode were characterized by X-ray diffraction,scanning electron microscope and electrochemical AC impedance.The results show that the polarization resistance of the cathode at 650℃is reduced by 10%after the surface modification,suggesting the electrochemical performance of LSCF is effectively improved by PCO impregnating.

关 键 词：固体氧化物燃料电池 阴极 表面修饰 浸渍 

分 类 号：TM911.4[电气工程—电力电子与电力传动]