Single-atom rhodium on BaTiO 3 for enhanced piezocatalytic H 2 O 2 production via promotion of oxidative ability
Abstract
than pristine BTO did under ultrasonic excitation. Mechanistic studies using (piezo)electrochemical measurements demonstrated that unlike conventional noble metal cocatalysts, which typically enhance the reduction kinetics, the RhSA sites on BTO do not promote the oxygen reduction reaction (ORR). Instead, they significantly accelerate the oxidation of isopropanol as a sacrificial reagent by efficiently utilizing the piezo-generated positive charges. This work establishes a surface-engineering strategy in which isolated atomic sites selectively boost positive charge-driven reactions, enabling the independent control of reduction and oxidation pathways and providing new design principles for high-performance piezocatalytic systems.
Fields of Study & Subjects
Advanced Photocatalysis Techniques
Advanced oxidation water treatment
Electrocatalysts for Energy Conversion
Publication details
- Journal / source
- Physical Chemistry Chemical Physics
- Publisher
- Royal Society of Chemistry (RSC)
- Volume
- 28
- Issue
- 10
- Pages
- 6190–6199
- Publication date
- 1 January 2026
- Language
- EN