One step infiltration induced multi-cation oxide nanocatalyst for load proof SOFC application

Abstract

Decreasing the operating temperature leads to an issue of high polarization that results in slow electrode kinetics. Infiltration of multi-cation oxide nanoparticle catalyst layer over the cathode backbone can provide low activation energy in catalyzing several electrochemical processes. The adoption of cetrimonium bromide(CTAB)-amino acid (glycine) route can become an efficient route to infiltrate particle with proper stoichiometry due to three-dimensional network forming nature owing to the zwitterionic form of the amino acid. Herein, we report a novel route for the development of discrete Sm0.5Sr0.5CoO3.delta(SSC) nanoparticles on the cathode backbone. In particular, the full cell shows enhancement in electrochemical property with a power density of 1.57 W cm(-2 )at 700 degrees C and 100 h durability test under 1 A cm(-2). These observations indicate that the selection of the CTAB-amino acid route for the infiltration process of SSC nanoparticle on the surface La0.6Sr0.4Co0.2Fe0.8O3.delta(LSCF6428) backbone is a significant step towards electrochemically viable SOFC performance improvement.