pp. 1053-1058
S&M1142 Research Paper of Special Issue https://doi.org/10.18494/SAM.2015.1179 Published: November 11, 2015 Enhancement of Methane Oxidation at the Cermet Anode Consisting of Nickel-Cobalt and Samaria-Doped Ceria in Solid Oxide Fuel Cells [PDF] Kazunori Sato, Hiromasa Tsuchiya, Jirachaya Ayawanna and Teoh Wahtzu (Received March 2, 2015; Accepted July 13, 2015) Keywords: microstructure, solid solution, cell performance, overpotential, methane oxidation
The partial substitution of Co atoms for Ni atoms in the Ni-based cermet anode resulted in a decrease in the anodic overvoltage and interfacial resistance between the anode and electrolyte. This effect has been confirmed for single solid oxide fuel cells using a samaria-doped ceria (SDC) electrolyte. The results of electrochemical measurements and a product analysis by gas chromatography revealed that the direct oxidation of CH4 is enhanced by the modification of the microstructure in the cermet anode, the effect of which is combined with a sufficient oxide ion supply through the electrolyte.
Corresponding author: Kazunori SatoCite this article Kazunori Sato, Hiromasa Tsuchiya, Jirachaya Ayawanna and Teoh Wahtzu, Enhancement of Methane Oxidation at the Cermet Anode Consisting of Nickel-Cobalt and Samaria-Doped Ceria in Solid Oxide Fuel Cells, Sens. Mater., Vol. 27, No. 10, 2015, p. 1053-1058. |