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Updated: Dec 3, 2025

Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System
Published on: January 7, 2022
A 2D donor-acceptor covalent organic framework with charge transfer for supercapacitors
Tao Li1, Xiaodong Yan, Wen-Da Zhang
1The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China. zhiguogu@jiangnan.edu.cn.
A novel electron donor-acceptor covalent organic framework (TTF-COF1) was synthesized. This material exhibits high capacitance and energy density, making it promising for energy storage applications.
Area of Science:
- Materials Science
- Electrochemistry
- Organic Chemistry
Background:
- Covalent organic frameworks (COFs) are crystalline porous polymers with tunable properties.
- Electron donor-acceptor materials are crucial for charge transfer applications.
Purpose of the Study:
- To construct a novel electron donor-acceptor COF (TTF-COF1).
- To investigate the electrochemical properties of TTF-COF1 for energy storage.
Main Methods:
- Imine condensation reaction between tetraformyl-tetrathiafulvalene (TTF-fo) and 2,6-diaminoanthraquinone (DAQ).
- Electrochemical characterization including capacitance and energy density measurements.
Main Results:
- Successful synthesis of TTF-COF1 with intramolecular charge transfer.
- Achieved a capacitance of 752 F g-1 at 1 A g-1.
- Obtained an energy density of 57 W h kg-1 at a power density of 858 W kg-1.
Conclusions:
- TTF-COF1 demonstrates excellent electrochemical performance.
- The material shows potential for high-performance energy storage devices.
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