Infiltration of nickel and copper catalysts into a GDC backbone assisted by supercritical CO2 for efficient SOFC anodes

Laura Guesnet (1) , Guillaume Aubert (1) , Hubert S. (1) , Pierre-Marie Geffroy (2) , Cyril Aymonier (1) , Jean-Marc. Bassat (1)

1 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux
2 IRCER - Institut de Recherche sur les CERamiques

This study describes an original method developed for the shaping of composite solid oxide fuel cell (SOFC) anodes including either nickel or copper as metal. They are prepared by catalyst (nickel or copper nitrates) infiltration into a porous GDC (Ce0.9Gd0.1O1.95) skeleton. The infiltration by the classical way is compared to the original infiltration by the supercritical way. Therefore, this article details the difference between these two kinds of infiltration and will explain how the infiltration using supercritical CO2 can finally lead to improving the electrochemical performances of the corresponding cells.

Domaines: Matériaux

Laura Guesnet, Guillaume Aubert, Hubert S., Pierre-Marie Geffroy, Cyril Aymonier, et al.. Infiltration of nickel and copper catalysts into a GDC backbone assisted by supercritical CO2 for efficient SOFC anodes. Sustainable Energy & Fuels, 2022, 6 (7), pp.1801-1811. ⟨10.1039/D2SE00251E⟩. ⟨hal-03618300⟩