Related Experiment Video
Updated: May 30, 2026
10:23
Synthesis and Functionalization of 3D Nano-graphene Materials: Graphene Aerogels and Graphene Macro Assemblies
Published on: November 5, 2015
Graphitization behaviour of chemically derived graphene sheets
Donghui Long1, Wei Li, Wenming Qiao
1State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, China. longdh@mail.ecust.edu.cn
Nanoscale
|August 2, 2011
Summary
High-temperature graphitization of graphene sheets resulted in structural defects and new self-organized structures. This study offers insights into the graphitization process and thermal stability of 2D graphene materials.
Area of Science:
- Materials Science
- Nanotechnology
- Physical Chemistry
Background:
- Graphene, a 2D material, has unique properties.
- Understanding graphitization is key for its applications.
- Chemical reduction of graphite oxide is a common graphene synthesis route.
Purpose of the Study:
- To investigate structural and morphological changes in graphene sheets after high-temperature graphitization.
- To analyze the degree of graphitization and defect levels.
- To explore the self-organization mechanisms during graphitization.
Main Methods:
- Chemical reduction of graphite oxide to prepare graphene sheets.
- Graphitization of graphene sheets at 2800 °C.
- Structural characterization using X-ray diffraction (XRD) and Raman spectroscopy.
- Surface analysis using X-ray photoelectron spectroscopy (XPS).
- Morphological analysis via electron microscopy (implied).
Main Results:
- Graphitized graphene sheets showed a low degree of graphitization and high structural defects.
- Complete elimination of oxygen functionalities was confirmed by XPS.
- Graphitization induced coalescence of graphene agglomerations into compressed grains.
- New structures, including loops and 3D nanoparticles, formed due to self-organization.
Conclusions:
- High-temperature graphitization leads to complex structural modifications in graphene.
- Self-organization plays a role in achieving lower energy states in graphitized graphene.
- Findings provide experimental basis for understanding graphene graphitization and thermal stability.
