title: Preparation of non-covalently functionalized graphene using 9-anthracene carboxylic acid.
abstract: A simple way of achieving stable aqueous dispersion of graphene by non-covalent functionalization using 9-anthracene carboxylic acid has been successfully accomplished. Unlike in chemically reduced graphene, the C-sp(2) network of the graphene remains undistorted and therefore of superior quality. The non-covalent functionalization facilitates the exfoliation of graphite layers in a polarity controlled combination of media. A detailed exfoliation mechanism is proposed based on the controlled experiment and is supported by the data from UV-vis spectroscopy, transmission electron microscopy, and x-ray diffraction studies. Formation of monolayer graphene has been confirmed from Raman spectroscopy. The graphene based ultracapacitor shows a high value of specific capacitance (148 F g(-1)).
authors.affiliation: WCU Program, Department of BIN Fusion Technology, Chonbuk National University, Jeonju, Jeonbuk, Republic of Korea.
authors.forename: Saswata
authors.initials: S
authors.lastname: Bose
authors.forename: Tapas
authors.initials: T
authors.lastname: Kuila
authors.forename: Ananta Kumar
authors.initials: AK
authors.lastname: Mishra
authors.forename: Nam Hoon
authors.initials: NH
authors.lastname: Kim
authors.forename: Joong Hee
authors.initials: JH
authors.lastname: Lee