Cr contamination, generated by system components located upstream a solid oxide fuel cell (SOFC) and responsible for Cr-poisoning induced air electrode performance degradation, must be suppressed by hindering the access of Cr pollutants to the cathode compartment. For this purpose, we developed an air filter, based on a (La,Sr)CoO3-coated ceramic foam, which was evaluated on its Cr-trapping potential within an SOFC system. An in-situ measurement based on a novel hot air sampling technique indicated a 7-fold decrease of the Cr contaminating level after the installation of a Cr getter filter, which should significantly extend SOFC lifetime.
Jan Van Herle, Stefan Diethelm, Priscilla Caliandro, Manuel Bianco
Dominique Bonvin, Jan Van Herle, Christophe Salzmann, Timm Faulwasser, Zacharie Wuillemin
François Maréchal, Daniel Alexander Florez Orrego