Sea urchin-like cobalt–iron phosphide as an active catalyst for oxygen evolution reaction†
Abstract
Sea urchin-like (CoxFe1−x)2P shows Co/Fe-composition dependent catalysis for oxygen evolution reaction (OER) in 0.1 M KOH. The (Co0.54Fe0.46)2P is the most efficient OER catalyst, reaching 10 mA cm−2 at an overpotential of 0.37 V (vs. RHE). The report offers a new synergistic approach to tune and optimize the electrocatalysis of OER.