This review highlights advances in transition metal electrocatalysts for cascade oxygen reduction in wastewater, suggesting new efficiencies in pollutant degradation.
Key Points
Cascade oxygen reduction improves wastewater treatment, enabling effective pollutant degradation with reduced energy requirements.
Recent findings revealed that atomically dispersed transition metals in carbon cathodes enhance the generation of reactive oxygen species.
This review assesses the synthesis and mechanism of transition metal-based catalysts in electrocatalysis from 2020 to 2025.
Significant challenges remain in achieving stable catalytic performance and optimizing active site control for long-term applications.