期刊
SCIENCE CHINA-TECHNOLOGICAL SCIENCES
卷 57, 期 2, 页码 244-248出版社
SCIENCE PRESS
DOI: 10.1007/s11431-014-5454-z
关键词
amphiphilic graphene; 5,6-diaminopyrazine-2,3-dicarbonitrile; cyclization reaction
资金
- NSFC for Excellent Young Scholars [21322402]
- National Natural Science Foundation of China [21274064, 61204095, 51173081]
- Program for New Century Excellent Talents in University [NCET-11-0992]
- Natural Science Foundation of Jiangsu Province, China [BK2011761, BK2012431, BK2009025]
- NJUPT [NY211022]
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.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据