Yoon, Sung Pil Kim, Hyun Jae Park, Byung-Tak Nam, Suk Woo Han, Jonghee Lim, Tae-Hoon Hong, Seong-Ahn 2024-01-21T03:39:39Z 2024-01-21T03:39:39Z 2021-09-02 2006-02 1550-624X https://pubs.kist.re.kr/handle/201004/135787 In order to develop solid oxide fuel cells (SOFCs) running on hydrocarbon fuels, we have focused on a new method of improving electrode performance and reducing carbon deposition by coating thin films of samaria-doped ceria (SDC) within the pores of electrode by a sol-gel coating technique. The SDC coating on the pores of anode made it possible to have a good stability for long-term operation due to low carbon deposition and nickel sintering. In this study, we demonstrated a new method of improving electrode performance and reducing carbon deposition by coating thin films of samaria-doped ceria and applied the modification technique to two different hypes of fuel cell structures, anode-supported SOFC and comb-shaped SOFC. Front our results, the maximum power density of an anode-supported cell (electrolyte; 8 mol% YSZ and thickness of 30 mu m, and cathode; La0.85Sr0.15MnO3) with the modified anode was similar to 300 mW/cm(2) at 700 degrees C in the mixture of methane (25%) and air (75%) as the fuel, and air as the oxidant. The cell was operated for 500 hr without significant degradation of cell performance. For the comb-shaped SOFCs operated in the mixed-fuels fuel cell conditions, the cell performance was 40 mW/cm(2) at 700 degrees C in the CH4/O-2 ratio of 1. English ASME DIRECT OXIDATION ANODE PERFORMANCE DEPOSITION Mixed-fuels fuel cell running on methane-air mixture Article 10.1115/1.2134741 1 JOURNAL OF FUEL CELL SCIENCE AND TECHNOLOGY, v.3, no.1, pp.83 - 86 JOURNAL OF FUEL CELL SCIENCE AND TECHNOLOGY 3 1 83 86 scie scopus 000237946200012 2-s2.0-33645748578 Electrochemistry Energy & Fuels Electrochemistry Energy & Fuels Article DIRECT OXIDATION ANODE PERFORMANCE DEPOSITION SOFC MFFC SDC coating Carbon deposition