1 Department of Chemistry and Centre for Advanced Solar Materials, University of Calgary, 2500 University Dr NW, Calgary, AB, Canada T2N 1N4. trudels@ucalgary.ca.
We present an amorphous quaternary Ba-Sr-Co-Fe oxide (a-BSCF) with a specific stoichiometry, readily fabricated via a photochemical decomposition method. a-BSCF demonstrates high catalytic activity towards the oxygen-evolution reaction (OER).