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Updated: May 31, 2026

Scalable Syntheses of Graphene Oxide and Reduced Graphene Oxide using Cascade Design Oxidation and Highly Basic Reduction Reactions
Published on: July 3, 2025
An environment-friendly preparation of reduced graphene oxide nanosheets via amino acid
Dezhi Chen1, Lidong Li, Lin Guo
1School of Chemistry and Environment, Beijing University of Aeronautics and Astronautics, Beijing 100191, People's Republic of China. School of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063, People's Republic of China.
Abstract:
Chemically modified graphene has been studied in many applications due to its excellent electrical, mechanical, and thermal properties. Among the chemically modified graphenes, reduced graphene oxide is the most important for its structure and properties, which are similar to pristine graphene. Here, we introduce an environment-friendly approach for preparation of reduced graphene oxide nanosheets through the reduction of graphene oxide that employs L-cysteine as the reductant under mild reaction conditions. The conductivity of the reduced graphene oxide nanosheets produced in this way increases by about 10(6) times in comparison to that of graphene oxide. This is the first report about using amino acids as a reductant for the preparation of reduced graphene oxide nanosheets, and this procedure offers an alternative route to large-scale production of reduced graphene oxide nanosheets for applications that require such material.
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