To explore how Cr doping affects the electronic structure of TiO2 and enhances the performance of the oxygen evolution reaction.
Structural modulation of TiO2 supports by Cr doping was utilized.
Kinetic analysis of the OER in acidic conditions was conducted.
Comparison with noble-metal catalysts was performed.
Cr-doped TiO2 demonstrated a significant increase in OER activity compared to undoped TiO2.
The change in electronic structure led to improved reaction kinetics for the OER.
Kinetics were improved when compared to traditional noble-metal catalysts.
Abstract
The oxygen evolution reaction (OER) in acidic media is a critical bottleneck for proton-exchange membrane water electrolysis (PEMWE) due to sluggish kinetics and the high cost of noble-metal catalysts. To...