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Preparation of Graphene Liquid Cells for the Observation of Lithium-ion Battery Material
Published on: February 5, 2019
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Free-standing nitrogen-doped graphene paper for lithium storage application
Hao Wen1, Binbin Guo1, Wenbin Kang1
1State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University Chengdu 610065 China chuhong.zhang@scu.edu.cn.
RSC Advances
|May 11, 2022
Summary
Researchers developed a novel nitrogen-doped graphene paper (N-GP) using a simple hydrothermal method. This N-GP material demonstrates enhanced performance for lithium-ion batteries (LIBs), offering a promising advancement in energy storage solutions.
Area of Science:
- Materials Science
- Electrochemistry
- Nanotechnology
Background:
- Graphene oxide (GO) is a precursor for graphene-based materials.
- Nitrogen doping can enhance the electrochemical properties of graphene.
- Developing efficient methods for nitrogen-doped graphene paper (N-GP) is crucial for energy storage applications.
Purpose of the Study:
- To fabricate a flexible, free-standing nitrogen-doped graphene paper (N-GP).
- To investigate the electrochemical performance of N-GP as an anode material for lithium-ion batteries (LIBs).
- To establish a facile and green method for simultaneous reduction and nitrogen doping of graphene oxide.
Main Methods:
- Hydrothermal synthesis using graphene oxide and ammonia vapor.
- Solid/gas interface reaction for doping and reduction.
- Electrochemical evaluation of N-GP as a LIB anode.
Main Results:
- Achieved a nitrogen doping level of approximately 6.81% in graphene paper.
- N-GP exhibited nearly doubled reversible discharge capacity compared to undoped graphene paper (GP).
- Demonstrated good cyclic stability and rate performance for N-GP in LIBs.
Conclusions:
- The hydrothermal approach at the solid/gas interface is an effective strategy for simultaneous reduction and nitrogen doping of GO.
- N-GP shows significant potential as an advanced anode material for high-performance lithium-ion batteries.
- This method offers a green and facile route for functionalizing graphene paper for energy applications.
