Scalable Ir-Doped NiFeO/TiO Heterojunction Anode for Decentralized Saline Wastewater Treatment and H Production.

Wastewater electrolysis cells (WECs) for decentralized wastewater treatment/reuse coupled with H production can reduce the carbon footprint associated with transportation of water, waste, and energy carrier. This study reports Ir-doped NiFeO (NFI, ~ 5 at% Ir) spinel layer with TiO overlayer (NFI/TiO), as a scalable heterojunction anode for direct electrolysis of wastewater with circumneutral pH in a single-compartment cell. In dilute (0.