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Updated: Jul 2, 2026
09:21
Tuning the Acidity of Pt/ CNTs Catalysts for Hydrodeoxygenation of Diphenyl Ether
Published on: August 17, 2019
Atomically dispersed pt catalysts for hydrogen evolution coupled with selective ethylene glycol oxidation
Wenjing Zhang1, Nan Zhao1, Xuewei Hao1
1Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Soochow University, Suzhou, Jiangsu 215123, China.
Journal of Colloid and Interface Science
|June 30, 2026
Summary
This study showcases a novel photocatalytic system using single-atom Pt/TiO2 to couple ethylene glycol (EG) oxidation with water reduction for hydrogen evolution, achieving high production rates.
Area of Science:
- Materials Science
- Catalysis
- Photochemistry
Background:
- Photocatalytic systems rely on coupled redox reactions for efficiency.
- Current research often overlooks integrated redox systems, focusing on individual half-reactions.
Purpose of the Study:
- To demonstrate an efficient coupled redox system for photocatalysis.
- To investigate the role of single-atom Pt/TiO2 in ethylene glycol (EG) oxidation and water reduction.
Main Methods:
- Utilized single-atom Pt/TiO2 as a photocatalyst.
- Investigated the simultaneous oxidation of EG to glycolaldehyde and water reduction to H2.
- Performed mechanistic studies on interfacial charge distribution and electron transfer.
Main Results:
- Achieved high production rates for glycolaldehyde (3852 μmol gcat-1 h-1) and hydrogen (3524 μmol gcat-1 h-1).
- Demonstrated simultaneous two-electron oxidation of EG and two-electron reduction of water.
- Revealed that single-atom Pt sites regulate charge distribution and facilitate electron transfer.
Conclusions:
- Established an efficient coupled redox system for photocatalysis.
- Provided fundamental insights into designing coupled redox systems.
- Offered a theoretical framework for single-atom catalysts in synergistic photocatalysis.
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