A Novel Electrode Material for Symmetrical SOFCs

5 ] The application of this new SOFC confi guration leads to a number of advantages. Possible sulfur poisoning or coke formation on the surface of the anode can be potentially eliminated by oper-ating the anode as a cathode; oxidant (typically air) will fl ush any sulfur or carbon species absorbed on the electrode, thereby regenerating the electrode from sulfur or coke deactivation. In addition, a redox stable cathode is also expected to enhance the cathode durability since O