March 3, 2026

In situ electrocatalytic H 2 O 2 synthesis over TiO 2 nanocrystal/porous carbon yolk–shell composites with oxygen functional group modulation

Key Points

H2O2 selectivity exceeds 90%, indicating strong electrocatalytic performance in the optimized catalyst.
Key finding includes improved selectivity and activity due to reduced TiO2 nanocrystal size and enhanced oxygen functionalization.
The optimized catalyst, TNC/C-4, shows superior electro-Fenton degradation of phenol, promoting pollutant removal.
This study highlights the importance of catalyst design in enhancing electrocatalytic processes for environmental applications.

Abstract

Here, we report a TiO2 nanocrystal/porous carbon yolk-shell composite that exhibits excellent electrocatalytic performance, featuring a high onset potential and >90% H2O2 selectivity. Systematic analyses reveal that enhanced oxygen functionalization and reduced TiO2 nanocrystal size are key to simultaneously improving selectivity and activity. The optimized catalyst, TNC/C-4, further demonstrates superior electro-Fenton degradation of phenol, enabling rapid and efficient pollutant removal.

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Cite This Study

Tian et al. (Thu,) studied this question.

synapsesocial.com/papers/69a75cf5c6e9836116a26476 https://doi.org/https://doi.org/10.1039/d5cc05112f

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