Cyclic voltammetry of La0.78Sr0.2FeO3-δ and La0.78Sr0.2Co0.2Fe0.8O3-δ electrodes interfaced to CGO/YSZ
The electrochemical characteristics of La0.78Sr0.2FeO3-δ (L78SF) and La0.78Sr0.2Co0.2Fe0.8O3-δ(L78SCF) cathode electrodes interfaced to a double layer Ce0.8Gd0.2O2-δ (CGO)/YSZ electrolyte were studied using cyclic voltammetry, in the temperature range of 600 to 850℃ and under flow of 0.7% O2 in He. The aim was to identify the electrochemical processes taking place under cathodic polarization. Current peaks were observed in the voltammograms, corresponding to potential and currents dependent on scan rate and temperature. The observed cathodic peaks can be related to reduction of the iron or/and cobalt ions but also to the competing reaction of oxygen reduction.
Cyclic voltammetry LSCF LSF Cathodes Mized conductors Solid ozide fuel cells
S.Bebelis V.Kournoutis A.Mai F.Tietz
Department of Chemical Engineering, University of Patras, GR 26504 Patras, Greece Institute of Energy Research (IEF-1), Forschungszentrum Julich, D-52425 Julich, Germany
国际会议
The 16th International Conference on Solid State Ionics(第十六届国际固态离子学会议)
上海
英文
1080-1084
2007-07-01（万方平台首次上网日期，不代表论文的发表时间）