Synthesis and characterization of amphiphilic graphene

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• 作者：ZhuZhu Du (1)
  Wei Ai (1)
  JianFeng Zhao (1)
  LingHai Xie (1)
  Wei Huang (1) (2)
  
• 关键词：amphiphilic graphene ; 5 ; 6 ; diaminopyrazine ; 2 ; 3 ; dicarbonitrile ; cyclization reaction
• 刊名：SCIENCE CHINA Technological Sciences
• 出版年：2014
• 出版时间：February 2014
• 年：2014
• 卷：57
• 期：2
• 页码：244-248
• 全文大小：757 KB
• 作者单位：ZhuZhu Du (1)
  Wei Ai (1)
  JianFeng Zhao (1)
  LingHai Xie (1)
  Wei Huang (1) (2)
  
  1. Centre of Molecular System and Organic Devices (CMSOD), Key Laboratory for Organic Electronics & Information Displays (KLOEID) and Institute of Advanced Materials (IAM), Nanjing University of Posts and Telecommunications, Nanjing, 210046, China
  2. Jiangsu-Singapore Joint Research Center for Organic/Bio-Electronics & Information Displays and Institute of Advanced Materials, Nanjing University of Technology, Nanjing, 211816, China
  
• ISSN：1869-1900

文摘

A simple and effective method for the preparation of amphiphilic graphene (AG) is presented under an organic solvent-free synthetic condition. The synthetic route first involves a cyclization reaction between carboxylic groups on graphene oxide and the amino groups on 5,6-diaminopyrazine-2,3-dicarbonitrile, and subsequent reduction by hydrazine. Results of UV-vis spectroscopy, Fourier transformed infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TGA) and Raman spectroscopy have confirmed that the covalent functionalization of graphene can be achieved through the formation of imidazo[4,5-b]pyrazine on the graphene sheets. As a result, AG can be successfully dispersed in water and common organic solvents. This work successfully provides a facile and efficient way to fabricate AG and may extend the potential applications of graphene-based materials in nanoelectronic devices, polymer fillers and biological field.