Amine-based solvents for exfoliating graphite to graphene outperform the dispersing capacity of N-methyl-pyrrolidone and surfactants

作者:Sun, Zhenyu*; Huang, Xing; Liu, Fang; Yang, Xiaoning; Roesler, Christoph; Fischer, Roland A.; Muhler, Martin; Schuhmann, Wolfgang
来源:Chemical Communications, 2014, 50(72): 10382-10385.
DOI:10.1039/c4cc03923h

摘要

Four organic amine-based solvents were discovered which enable direct exfoliation of graphite to produce high-quality and oxygen-free graphene nanosheets. These solvents outperform previously used solvents and additives such as N-methyl-pyrrolidone and surfactants in terms of their dispersing capacity. The resulting dispersions allow the facile fabrication of zeolitic imidazolate framework (ZIF)-graphene nanocomposites with remarkable CO2 storage capability.