Author
Listed:
- Li Peng
(MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Zhejiang University)
- Zhen Xu
(MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Zhejiang University)
- Zheng Liu
(MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Zhejiang University)
- Yangyang Wei
(MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Zhejiang University)
- Haiyan Sun
(MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Zhejiang University)
- Zheng Li
(MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Zhejiang University)
- Xiaoli Zhao
(MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Zhejiang University)
- Chao Gao
(MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Zhejiang University)
Abstract
As a reliable and scalable precursor of graphene, graphene oxide (GO) is of great importance. However, the environmentally hazardous heavy metals and poisonous gases, explosion risk and long reaction times involved in the current synthesis methods of GO increase the production costs and hinder its real applications. Here we report an iron-based green strategy for the production of single-layer GO in 1 h. Using the strong oxidant K2FeO4, our approach not only avoids the introduction of polluting heavy metals and toxic gases in preparation and products but also enables the recycling of sulphuric acid, eliminating pollution. Our dried GO powder is highly soluble in water, in which it forms liquid crystals capable of being processed into macroscopic graphene fibres, films and aerogels. This green, safe, highly efficient and ultralow-cost approach paves the way to large-scale commercial applications of graphene.
Suggested Citation
Li Peng & Zhen Xu & Zheng Liu & Yangyang Wei & Haiyan Sun & Zheng Li & Xiaoli Zhao & Chao Gao, 2015.
"An iron-based green approach to 1-h production of single-layer graphene oxide,"
Nature Communications, Nature, vol. 6(1), pages 1-9, May.
Handle:
RePEc:nat:natcom:v:6:y:2015:i:1:d:10.1038_ncomms6716
DOI: 10.1038/ncomms6716
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