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Updated: Mar 14, 2026

Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System
Published on: January 7, 2022
Inherent N,O-containing carbon frameworks as electrode materials for high-performance supercapacitors.
Fangyuan Hu1, Jinyan Wang1, Shui Hu1
1Liaoning Province Engineering Centre of High Performance Resins, Dalian University of Technology, Dalian, China and State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China. jian4616@dlut.edu.cn.
Researchers developed novel nitrogen and oxygen-containing porous carbon frameworks (PHCFs) for energy storage. These materials demonstrate high specific capacitance and excellent cycling stability, offering a promising route for advanced electrode fabrication.
Area of Science:
- Materials Science
- Electrochemistry
- Nanotechnology
Background:
- Micropore-dominated materials are crucial for energy storage applications.
- Developing stable, high-performance electrode materials remains a key challenge.
Purpose of the Study:
- To synthesize novel nitrogen and oxygen-containing porous carbon frameworks (PHCFs).
- To investigate the electrochemical properties and stability of these PHCFs for energy storage.
Main Methods:
- Temperature-dependent cross-linking of 4,4'-(dioxo-diphenyl-2,3,6,7-tetraazaanthracenediyl)dibenzonitrile (DPDN) monomers.
- Molecular engineering strategy for atomic-level distribution of heteroatoms.
- Characterization of porous structure and electrochemical performance.
Main Results:
- Synthesized PHCFs with homogeneous distribution of nitrogen and oxygen heteroatoms.
- Achieved a high specific capacitance of 378 F g-1 for PHCFs@550.
- Demonstrated excellent cycling stability with ca. 120% capacitance retention over 20,000 cycles.
Conclusions:
- PHCFs exhibit promising electrical properties due to stable heteroatom distribution.
- Facile synthesis route provides new insights for nitrogen and oxygen-containing electrode materials.
- Developed materials offer a viable option for advanced energy storage devices.
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