Enhancing Oxygen Evolution Reaction Activity by Using Switchable Polarization in Ferroelectric InSnO 2 N

Ferroelectric modulation of the surface charge density is a promising strategy to promote the surface oxygen evolution reaction (OER) in photocatalytic water splitting. The limitations of the Sabatier principle could be overcome by tuning the interaction strength between the OER intermediates and the surface for the individual reaction steps via switching of the polarization direction. InSnO 2 N, a newly reported improper ferroelectric semiconductor, is promising for applications as a photocatalyst due to its direct band gap of 1.61 eV and its sizable ferroelectric polarization. Therefore, in... Mehr ...