Activating a hematite nanorod photoanode <i>via</i> fluorine-doping and surface fluorination for enhanced oxygen evolution reaction
Chenglong Wang, Shenqi Wei, Feng Li, Xuefeng Long, Tong Wang, Peng Wang, Shuwen Li, Jiantai Ma, Jun Jin
Abstract
) enriched the F-Fe bonds on the surface, which significantly boosted the OER kinetics and thereby inhibited the detrimental charge recombination. As a consequence, the efficiencies of bulk electron-hole pair separation and surface hole injection increased by 2.8 and 1.7 times, respectively. This study points to fluorine modulation as an attractive avenue to advance the PEC performance of metal oxide-based photoelectrode materials.
Topics & Concepts
NanorodHematiteFluorineDopingMaterials scienceNanotechnologyOxygen evolutionOxygenChemical engineeringChemistryOptoelectronicsElectrochemistryOrganic chemistryPhysical chemistryMetallurgyElectrodeEngineeringIron oxide chemistry and applicationsAdvanced Photocatalysis TechniquesRadioactive element chemistry and processing