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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
Highly efficient reduction of graphene oxide using ammonia borane.
Viet Hung Pham1, Seung Hyun Hur, Eui Jung Kim
1School of Chemical Engineering and Bioengineering, University of Ulsan, Namgu, Daehakro 93, Ulsan 680-749, Republic of Korea.
Chemical Communications (Cambridge, England)
|June 18, 2013
Summary
Ammonia borane effectively reduces graphene oxide in various solvents, offering a safer and superior alternative to hydrazine. This process yields nitrogen- and boron-doped graphene with excellent supercapacitor capabilities.
Area of Science:
- Materials Science
- Electrochemistry
- Nanotechnology
Background:
- Graphene oxide (GO) is a precursor to graphene, but its reduction requires efficient and safe methods.
- Hydrazine is a common reducing agent for GO, but it is toxic and poses environmental concerns.
- Developing alternative reducing agents is crucial for sustainable graphene production.
Purpose of the Study:
- To introduce ammonia borane as a novel, non-toxic reducing agent for graphene oxide.
- To evaluate the efficacy of ammonia borane in reducing GO in both aqueous and organic solvents.
- To investigate the properties and performance of graphene derived from ammonia borane reduction for supercapacitor applications.
Main Methods:
- Ammonia borane was employed as a reducing agent for graphene oxide in aqueous and organic (tetrahydrofuran) solutions.
- The resulting doped graphene materials were characterized using various analytical techniques.
- Supercapacitor performance was evaluated using electrochemical methods.
Main Results:
- Ammonia borane demonstrated effective GO reduction in both solvent types, outperforming hydrazine.
- The reduction of GO in tetrahydrofuran using ammonia borane yielded nitrogen- and boron-doped graphene.
- The doped graphene exhibited high performance in supercapacitor devices.
Conclusions:
- Ammonia borane is a versatile, non-toxic, and highly effective reducing agent for graphene oxide.
- Nitrogen- and boron-doped graphene produced via ammonia borane reduction shows significant promise for energy storage applications, particularly supercapacitors.
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