Researchers at Stanford University have developed a new low-voltage, single-catalyst water splitter that continuously generates hydrogen and oxygen. An open access paper describing the synthesis and functionality of the bi-functional non-noble metal oxide nanoparticle electrocatalysts appears in the journal Nature Communications . In the reported study, the new catalyst achieved 10 mA cm −2 water-splitting current at only 1.51 V for more than 200 h without degradation in a two-electrode configuration and 1 M KOH—better than the combination of iridium and platinum as benchmark catalysts. Electrochemical/photoelectrochemical water splitting is widely considered to be a critical step for efficient renewable energy production, storage and usage such as sustainable hydrogen production, rechargeable metal-air batteries and fuel cells. Currently, the state-of-the-art catalysts to split water are IrO 2 and Pt for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER), respectively, with ~1.5 V to reach 10 mA cm −2 current (for […]