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Updated: Feb 26, 2026
Synthesis and Functionalization of 3D Nano-graphene Materials: Graphene Aerogels and Graphene Macro Assemblies
Published on: November 5, 2015
Nitrogen-Superdoped 3D Graphene Networks for High-Performance Supercapacitors
Weili Zhang1, Chuan Xu2, Chaoqun Ma2
1National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, Jiangsu Provincial Key Laboratory for Nanotechnology, Nanjing University, Nanjing, 210093, P. R. China.
A novel nitrogen-superdoped 3D graphene network was synthesized for high-performance supercapacitors. This advanced material demonstrates exceptional electrochemical properties, offering a promising solution for next-generation energy storage devices.
Area of Science:
- Materials Science
- Electrochemistry
- Nanotechnology
Background:
- Supercapacitors are crucial for energy storage.
- Developing advanced electrode materials is key to improving supercapacitor performance.
- Nitrogen doping in graphene enhances electrochemical activity.
Purpose of the Study:
- To design and synthesize a nitrogen-superdoped 3D graphene network for high-performance supercapacitors.
- To investigate the electrochemical properties of the novel material.
- To evaluate its potential for energy storage applications.
Main Methods:
- Synthesis of a 3D graphene network using graphene foam as a skeleton.
- Incorporation of nitrogen-superdoped reduced graphene oxide aerogels.
- Characterization of the material's structure, conductivity, and surface area.
- Electrochemical testing in various electrolytes using three- and two-electrode configurations.
Main Results:
- Achieved a high nitrogen doping level of 15.8 at%.
- Exhibited a highly conductive 3D porous structure (3.33 S cm-1) and large surface area (583 m2 g-1).
- Demonstrated excellent specific capacitance (up to 380 F g-1 in alkaline electrolyte).
- Showcased good rate capability, cycling stability (93.5% retention after 4600 cycles), and low internal resistance (0.4 Ω).
Conclusions:
- The N-superdoped 3D graphene network offers superior electrochemical performance for supercapacitors.
- The synergistic effects of high conductivity, large surface area, and active sites contribute to excellent energy storage.
- This material presents a viable pathway for developing high-power and high-energy density supercapacitors.
