Construction of 3D covalent organic frameworks for highly efficient sonocatalytic H2 evolution
Congjie Liu1,2, Guorong Li2, Wen-Jie Chen2
1Fujian Key Laboratory of Polymer Materials, College of Materials Science and Engineering, Fujian Normal University, Fuzhou 350007, China. chengzhibin@fjnu.edu.cn.
Nanoscale
|July 8, 2026
Summary
Researchers developed novel covalent organic frameworks (COFs) for efficient clean hydrogen (H2) production via sonocatalysis. The ET2P COF demonstrated a high H2 evolution rate, showcasing potential for sustainable energy solutions.
Area of Science:
- Materials Science
- Energy Science
- Catalysis
Background:
- Growing global energy and ecological concerns drive demand for clean hydrogen (H2) production.
- Sonocatalysis offers a unique method for H2 generation by converting mechanical energy.
- Covalent organic frameworks (COFs) show promise for H2 production, but their use in sonocatalysis is underexplored.
Purpose of the Study:
- To synthesize and evaluate two novel 3D covalent organic frameworks (COFs) for sonocatalytic hydrogen (H2) production.
- To investigate the performance and stability of these COFs under sonocatalytic conditions.
- To understand the structure-property relationships influencing H2 evolution efficiency.
Main Methods:
- Synthesis of two distinct 3D COFs: ET2P COF and ETA COF.
- Systematic investigation of their performance in sonocatalytic H2 evolution.
- Characterization of catalytic activity, stability, and underlying electronic properties.
Main Results:
- ET2P COF achieved a high H2 evolution rate of 11.22 mmol g⁻¹ h⁻¹ under optimal sonocatalytic conditions (180 W, 45 kHz).
- ET2P COF significantly outperformed ETA COF and many existing sonocatalytic materials.
- The material exhibited good cycling stability, indicating its robustness.
Conclusions:
- The enhanced performance of ET2P COF is linked to superior charge separation efficiency and an optimized energy band structure.
- This study expands the application scope of 3D COFs in advanced sonocatalytic systems.
- The findings pave the way for developing efficient COF-based materials for sustainable H2 production.
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