Mixed-fuels fuel cell runnig on methane-air mixture

Sung Pil Yoon, Hyun Jae Kim, Byung Tak Park, SukWoo Nam, Jonghee Han, Tae Hoon Lim, Seong Ahn Hong

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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 languageEnglish
Title of host publicationProceedings of the 3rd International Conference on Fuel Cell Science, Engineering, and Technology, 2005
EditorsR.K. Shah, E.U. Ubong, S.S. Samuelsen
Pages323-327
Number of pages5
Publication statusPublished - 2005 Nov 21
Externally publishedYes
Event3rd International Conference on Fuel Cell Science, Engineering, and Technology, 2005 - Ypsilanti, MI, United States
Duration: 2005 May 232005 May 25

Other

Other3rd International Conference on Fuel Cell Science, Engineering, and Technology, 2005
CountryUnited States
CityYpsilanti, MI
Period05/5/2305/5/25

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ASJC Scopus subject areas

  • Engineering(all)

Cite this

Yoon, S. P., Kim, H. J., Park, B. T., Nam, S., Han, J., Lim, T. H., & Hong, S. A. (2005). Mixed-fuels fuel cell runnig on methane-air mixture. In R. K. Shah, E. U. Ubong, & S. S. Samuelsen (Eds.), Proceedings of the 3rd International Conference on Fuel Cell Science, Engineering, and Technology, 2005 (pp. 323-327). [FUELCELL-74081]