Facile Approach to Enhance Activity and CO Resistance of a Novel Cobalt-Free Perovskite Cathode for Solid Oxide Fuel Cells.

Developing high-performance and cost-effective cathodes is ever-increasingly vital for the advancement of intermediate-temperature solid oxide fuel cells (IT-SOFCs). To facilitate the popularization of nonprecious metallic and cobalt-free oxygen reduction electrodes, herein, we propose a novel perovskite-based BaFeO (BF) matrix, BaSrFeYO (BSFY), as a highly active cathode for IT-SOFCs. To our satisfaction, the BSFY electrode showcases a low area-specific resistance of 0.

Materials Engineering in Perovskite for Optimized Oxygen Evolution Electrocatalysis in Alkaline Condition.

Developing robust and highly efficient electrocatalysts for oxygen evolution reaction (OER) is critical for renewable, secure, and emission-free energy technologies. Perovskite Ba Sr Co Fe O (BSCF) has emerged as a promising OER electrocatalyst with desirable intrinsic activity. Inspired by the factor that substituting in transition-metal sublattice of the perovskite can further optimize the OER activity, herein, nickel-substituted BSCF is adopted, that is, Ba Sr Co Fe Ni O (x = 0.