Engineering Interfacial Charge Transfer in TiO2−g-C3N4 Heterojunction Photoanodes via Er Doping for Efficient Solar Redox Flow Batteries
Solar redox flow batteries (SRFBs) provide a promising platform for directly coupling solar energy conversion with electrochemical energy storage, but their performance is still limited by insufficient solar-spectrum utilization and sluggish interfacial charge transfer at photoelectrodes. Herein, an Er-modified TiO2−...