Novel anode materials and triode operation: Two approaches for improving the performance of SOFCs supplied with H2S containing-methane

F.M. Sapountzi , A. Boreave (1) , L. Retailleau-Mevel (1) , M.N. Tsampas (2) , D. Niakolas , C. Neofytidis , D. Montinaro , P. Vernoux (1)

1 AIR - AIR
2 IRCELYON - Institut de recherches sur la catalyse et l'environnement de Lyon

Solid oxide fuel cells have the flexibility, due to their high operating temperature, to use natural gas directly as the fuel in the anodic compartment. A typical problem in this process is the significant degradation in cell voltage and in the catalytic direct internal reforming activity due to H2S poisoning, which is present in natural gas [1]. The aim of this study is to enhance the sulphur tolerance of SOFCs operated under 2%CH4-5%H2O in presence of 1-10 ppm H2S at 800-900oC. The first aim of this study is the development of novel modified Ni/GDC anodes with improved sulphur tolerance during catalytic CH4 reforming. The second approach entails the use of triode operation in order to enhance the SOFC performance.

Domaines: Catalyse; Environnement et Société

F.M. Sapountzi, A. Boreave, L. Retailleau-Mevel, M.N. Tsampas, D. Niakolas, et al.. Novel anode materials and triode operation: Two approaches for improving the performance of SOFCs supplied with H2S containing-methane. 65th Annual Meeting of the International Society of Electrochemistry, Aug 2014, Lausanne, Switzerland. ⟨hal-01058211⟩