A hydrated strontium cobalt oxyhydroxide Ruddlesden–Popper phase as an oxygen electrocatalyst for aqueous lithium–oxygen rechargeable batteries†
Abstract
This study investigates oxygen electrocatalytic activities of perovskite-related compounds using a rotating disk electrode technique in an aqueous solution containing lithium chloride and lithium hydroxide. A hydrated oxyhydroxide Ruddelesden–Popper phase, Sr3Co2O5(OH)2·2H2O, exhibits excellent performance especially in the oxygen evolution reaction.