O2 - NiSx/C3N4 anode (IMAGE) Niigata University Caption Schematic representation of the water dissociation process at low overpotential of about 32 mV using NiSx nanowires stuffed into C3N4 scabbard as anode for water oxidation. Credit Niigata University Usage Restrictions The image may only be used with appropriate caption or credit. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.