TY - SER AU - Guo, Youmin AU - liu, Yu AU - Cai, R AU - Chen, Dengjie TI - Electrochemical Contribution of Silver Current Coliector to Oxygen Reduction Reaction Over Ba0.5sr0.5co0.8fe0.2o3-O Electrode on Oxygen-Ionic Conducting Electrolyte KW - Solid Oxide Fuel Celi(Sofc) KW - Cathode KW - Silver ER -