Performance variability of Ba0.5Sr0.5Co0.8Fe0.2O3-δ cathode on proton-conducting electrolyte SOFCs with Ag and Au current collectors

作     者：Ting-Ting Wan An-Kang Zhu Hai-Bo Li Chun-Chang Wang You-Min Guo Zong-Ping Shao Oumarou Savadogo 

作者机构：School of Physics and Materials ScienceAnhui UniversityHefei 230601China State Key Laboratory of Materials-Oriented Chemical EngineeringCollege of Chemistry and Chemical EngineeringNanjing University of TechnologyNanjing 210009China Department of Chemical EngineeringCurtin UniversityPerth W A 6845.Australia Laboratory of New Materials for Electrochemistry and EnergyPolytechnique MontrealC.P.6079Succursale Centre-VilleMontr6alQC H3C 3A7Canada 

出 版 物：《Rare Metals》 (稀有金属（英文版）)

年 卷 期：2018年第37卷第8期

页      面：633-641页

核心收录：

学科分类：080801[工学-电机与电器] 0808[工学-电气工程] 08[工学] 

基　　金：financially supported by the National Natural Science Foundation of China(No.51502001) the Natural Science Fund of Anhui Province (No.1608085MB31) the Provincial Natural Science Research Program of Higher Education Institutions of Anhui Province (No.KJ2015A0501) Anhui University Personnel Recruiting Project of Academic and Technical Leaders (No.J10117700069) the State Key Laboratory of MaterialsOriented Chemical Engineering (No.KL15-01) 

主　　题：Solid oxide fuel cell Proton conductor Agcurrent collector Operation stability 

摘      要：Ba0.5Sr0.5Co0.8Fe0.2O3-δ （BSCF） is one of the most active cathode materials and shows significant hydration effect suggesting possible proton conductivity. In this study, the performance of BSCF cathode on a protonconducting BaZr0.1Ce0.7Y0.2O3-δ（BZCY） electrolyte with silver and gold current collectors was determined. The electrochemical characteristics of the symmetrical and anode-supported cell with diluted silver electrode, silver current collector or gold current collector on BSCF electrode were compared. The significant result is that, although the diluted silver electrode itself shows poor operation stability, the silver current collector has strong electrocatalytic contribution to the BSCF cathode performance on the proton-conducting electrolyte, leading to higher cell performance than that with the gold current collector.