title: Reduced graphene oxide by chemical graphitization.
abstract: Reduced graphene oxides (RG-Os) have attracted considerable interest, given their potential applications in electronic and optoelectronic devices and circuits. However, very little is known regarding the chemically induced reduction method of graphene oxide (G-O) in both solution and gas phases, with the exception of the hydrazine-reducing agent, even though it is essential to use the vapour phase for the patterning of hydrophilic G-Os on prepatterned substrates and in situ reduction to hydrophobic RG-Os. In this paper, we report a novel reducing agent system (hydriodic acid with acetic acid (HI-AcOH)) that allows for an efficient, one-pot reduction of a solution-phased RG-O powder and vapour-phased RG-O (VRG-O) paper and thin film. The reducing agent system provided highly qualified RG-Os by mass production, resulting in highly conducting RG-O(HI-AcOH). Moreover, VRG-O(HI-AcOH) paper and thin films were prepared at low temperatures (40 °C) and were found to be applicable to flexible devices. This one-pot method is expected to advance research on highly conducting graphene platelets.
authors.affiliation: Department of Chemistry, National Creative Research Initiative, Center for Smart Molecular Memory, Sungkyunkwan University, 300 Cheoncheon-Dong, Jangan-Gu, Suwon, Gyeonggi-Do 440-746, Republic of Korea.
authors.forename: In Kyu
authors.initials: IK
authors.lastname: Moon
authors.forename: Junghyun
authors.initials: J
authors.lastname: Lee
authors.forename: Rodney S
authors.initials: RS
authors.lastname: Ruoff
authors.forename: Hyoyoung
authors.initials: H
authors.lastname: Lee
mesh_terms: D004581:Electronics; D006108:Graphite / Q000737:chemistry*; D055096:Optical Devices; D010084:Oxidation-Reduction; D010087:Oxides / Q000737:chemistry*
chemical_list: D010087:Oxides; D006108:Graphite