Abstract
In order to develop SOFC 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 (SDC) and applied the modification technique to two different types of fuel cell structures, anode-supported SOFC and comb-shaped SOFC. From our results, the maximum power density of an anode-supported cell (electrolyte; 8 mol% YSZ and thickness of 30 μm, and cathode; La 0.85Sr0.15MnO3) with the modified anode was about 300 mW/cm2 at 700 °C in the mixture of methane (25%) and air (75%) as the fuel and air as the oxidant. The cell was operated for 500 h without significant degradation of cell performance. For the comb-shaped SOFCs operated in the mixed-fuels fuel cell (MFFC) conditions, the cell performance was 40 mW/cm2 at 700°C in the CH4/O2 ratio of 1.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 3rd International Conference on Fuel Cell Science, Engineering, and Technology, 2005 |
| Editors | R.K. Shah, E.U. Ubong, S.S. Samuelsen |
| Pages | 323-327 |
| Number of pages | 5 |
| Publication status | Published - 2005 Nov 21 |
| Externally published | Yes |
| Event | 3rd International Conference on Fuel Cell Science, Engineering, and Technology, 2005 - Ypsilanti, MI, United States Duration: 2005 May 23 → 2005 May 25 |
Other
| Other | 3rd International Conference on Fuel Cell Science, Engineering, and Technology, 2005 |
|---|---|
| Country | United States |
| City | Ypsilanti, MI |
| Period | 05/5/23 → 05/5/25 |
Fingerprint
ASJC Scopus subject areas
- Engineering(all)
Cite this
Mixed-fuels fuel cell runnig on methane-air mixture. / Yoon, Sung Pil; Kim, Hyun Jae; Park, Byung Tak; Nam, SukWoo; Han, Jonghee; Lim, Tae Hoon; Hong, Seong Ahn.
Proceedings of the 3rd International Conference on Fuel Cell Science, Engineering, and Technology, 2005. ed. / R.K. Shah; E.U. Ubong; S.S. Samuelsen. 2005. p. 323-327 FUELCELL-74081.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Mixed-fuels fuel cell runnig on methane-air mixture
AU - Yoon, Sung Pil
AU - Kim, Hyun Jae
AU - Park, Byung Tak
AU - Nam, SukWoo
AU - Han, Jonghee
AU - Lim, Tae Hoon
AU - Hong, Seong Ahn
PY - 2005/11/21
Y1 - 2005/11/21
N2 - In order to develop SOFC 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 (SDC) and applied the modification technique to two different types of fuel cell structures, anode-supported SOFC and comb-shaped SOFC. From our results, the maximum power density of an anode-supported cell (electrolyte; 8 mol% YSZ and thickness of 30 μm, and cathode; La 0.85Sr0.15MnO3) with the modified anode was about 300 mW/cm2 at 700 °C in the mixture of methane (25%) and air (75%) as the fuel and air as the oxidant. The cell was operated for 500 h without significant degradation of cell performance. For the comb-shaped SOFCs operated in the mixed-fuels fuel cell (MFFC) conditions, the cell performance was 40 mW/cm2 at 700°C in the CH4/O2 ratio of 1.
AB - In order to develop SOFC 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 (SDC) and applied the modification technique to two different types of fuel cell structures, anode-supported SOFC and comb-shaped SOFC. From our results, the maximum power density of an anode-supported cell (electrolyte; 8 mol% YSZ and thickness of 30 μm, and cathode; La 0.85Sr0.15MnO3) with the modified anode was about 300 mW/cm2 at 700 °C in the mixture of methane (25%) and air (75%) as the fuel and air as the oxidant. The cell was operated for 500 h without significant degradation of cell performance. For the comb-shaped SOFCs operated in the mixed-fuels fuel cell (MFFC) conditions, the cell performance was 40 mW/cm2 at 700°C in the CH4/O2 ratio of 1.
UR - http://www.scopus.com/inward/record.url?scp=27744580849&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=27744580849&partnerID=8YFLogxK
M3 - Conference contribution
SN - 0791837645
SP - 323
EP - 327
BT - Proceedings of the 3rd International Conference on Fuel Cell Science, Engineering, and Technology, 2005
A2 - Shah, R.K.
A2 - Ubong, E.U.
A2 - Samuelsen, S.S.
ER -