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Updated: Sep 23, 2025
Microscopic Visualization of Porous Nanographenes Synthesized through a Combination of Solution and On-Surface Chemistry
Published on: March 4, 2021
A combustion method to synthesize nanoporous graphene
Q Y Yang1, H L Zhou1, M T Xie1
1Key Laboratory of Strongly-Coupled Matter Physics, Chinese Academy of Sciences, Hefei National Laboratory for Physical Science at Microscale, Department of Physics, University of Science and Technology of China Hefei Anhui 230026 P. R. China gzwang@ustc.edu.cn.
A novel combustion method rapidly produces nanoporous graphene (RGO) from graphene oxide aerogel/paper composites. This environmentally friendly technique yields high-surface-area RGO suitable for high-performance supercapacitors.
Area of Science:
- Materials Science
- Nanotechnology
- Electrochemistry
Background:
- Graphene oxide aerogels (GOA) are precursors for advanced carbon materials.
- Developing cost-effective and scalable methods for producing porous graphene is crucial for energy storage applications.
Purpose of the Study:
- To introduce a rapid, low-cost, and environmentally friendly combustion method for synthesizing nanoporous graphene.
- To evaluate the performance of the synthesized porous reduced graphene oxide (P-RGO) in supercapacitors.
Main Methods:
- Graphene oxide aerogel/paper (GOA/GOP) composites were combusted on a hot plate at 200 °C.
- The self-combustion process converted GOA/GOP into P-RGO within seconds.
- Supercapacitors were fabricated using the synthesized P-RGO.
Main Results:
- The combustion method produced P-RGO with nanopores (0.4-2.0 nm) and a high specific surface area (536 m² g⁻¹).
- Supercapacitors exhibited a high specific capacitance (245 F g⁻¹ at 0.1 A g⁻¹) and excellent cycle stability (96.9% retention after 12,000 cycles).
- The production yield of P-RGO reached 77.0%.
Conclusions:
- The proposed combustion method is an efficient and scalable approach for producing high-quality nanoporous graphene.
- The synthesized P-RGO demonstrates significant potential for use in high-performance energy storage devices like supercapacitors.
