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Scalable Syntheses of Graphene Oxide and Reduced Graphene Oxide using Cascade Design Oxidation and Highly Basic Reduction Reactions
Published on: July 3, 2025
Rapid and effective functionalization of graphene oxide by ionic liquid
Weibo Yan1, Yi Huang, Yanfei Xu
1Key Laboratory of Functional Polymer Materials, Center for Nanoscale Science and Technology, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300 071, China.
Journal of Nanoscience and Nanotechnology
|July 5, 2012
Summary
Functionalized graphene oxide (DDIB-GO) sheets were synthesized using ionic liquids for improved dispersion in ortho-dichlorobenzene. The resulting material exhibited good electronic conductivity after annealing, showing potential for electronic applications.
Area of Science:
- Materials Science
- Nanotechnology
- Organic Chemistry
Background:
- Graphene oxide (GO) is a promising material, but its dispersion in organic solvents can be challenging.
- Functionalization of GO can enhance its properties and processability.
Purpose of the Study:
- To develop a method for covalently functionalizing graphene oxide (GO) with imidazolium ionic liquids.
- To investigate the properties and dispersion of the functionalized graphene oxide (DDIB-GO) in ortho-dichlorobenzene (ODCB).
Main Methods:
- Covalent functionalization of GO using ion exchange with 1,3-didodecylimidazolium bromine.
- Characterization using FTIR, UV Vis NIR, XPS, TGA, TEM, and AFM.
- Preparation and annealing of DDIB-GO films in ODCB.
Main Results:
- Successful covalent attachment of 1,3-didodecylimidazolium to GO sheets confirmed by FTIR, XPS, and TGA.
- Functionalization minimally affected the size and shape of GO sheets, maintaining single-layer dispersion.
- Annealed DDIB-GO films in ODCB exhibited good electronic conductivity.
Conclusions:
- The developed functionalization method provides a stable and effective way to modify GO.
- DDIB-GO shows excellent dispersibility in ODCB, suitable for film preparation.
- The material holds potential for applications requiring conductive graphene-based films.
