title: Self-Assembled N/S Codoped Flexible Graphene Paper for High Performance Energy Storage and Oxygen Reduction Reaction.
abstract: A novel flexible three-dimensional (3D) architecture of nitrogen and sulfur codoped graphene has been successfully synthesized via thermal treatment of a liquid crystalline graphene oxide-doping agent composition, followed by a soft self-assembly approach. The high temperature process turns the layer-by-layer assembly into a high surface area macro- and nanoporous free-standing material with different atomic configurations of graphene. The interconnected 3D network exhibits excellent charge capacitive performance of 305 F g(-1) (at 100 mV s(-1)), an unprecedented volumetric capacitance of 188 F cm(-3) (at 1 A g(-1)), and outstanding energy density of 28.44 Wh kg(-1) as well as cycle life of 10 000 cycles as a free-standing electrode for an aqueous electrolyte, symmetric supercapacitor device. Moreover, the resulting nitrogen/sulfur doped graphene architecture shows good electrocatalytic performance, long durability, and high selectivity when they are used as metal-free catalyst for the oxygen reduction reaction. This study demonstrates an efficient approach for the development of multifunctional as well as flexible 3D architectures for a series of heteroatom-doped graphene frameworks for modern energy storage as well as energy source applications.
authors.affiliation: Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials (AIIM) Facility, University of Wollongong , Innovation Campus, North Wollongong, New South Wales 2522, Australia.
authors.forename: Taslima
authors.initials: T
authors.lastname: Akhter
authors.affiliation: Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials (AIIM) Facility, University of Wollongong , Innovation Campus, North Wollongong, New South Wales 2522, Australia.
authors.forename: Md Monirul
authors.initials: MM
authors.lastname: Islam
authors.affiliation: Laboratory for Sustainable Technology, School of Chemical and Bimolecular Engineering, The University of Sydney , Sydney, New South Wales 2006, Australia.
authors.forename: Shaikh Nayeem
authors.initials: SN
authors.lastname: Faisal
authors.affiliation: Laboratory for Sustainable Technology, School of Chemical and Bimolecular Engineering, The University of Sydney , Sydney, New South Wales 2006, Australia.
authors.forename: Enamul
authors.initials: E
authors.lastname: Haque
authors.affiliation: Laboratory for Sustainable Technology, School of Chemical and Bimolecular Engineering, The University of Sydney , Sydney, New South Wales 2006, Australia.
authors.forename: Andrew I
authors.initials: AI
authors.lastname: Minett
authors.affiliation: Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials (AIIM) Facility, University of Wollongong , Innovation Campus, North Wollongong, New South Wales 2522, Australia.
authors.forename: Hua Kun
authors.initials: HK
authors.lastname: Liu
authors.affiliation: Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials (AIIM) Facility, University of Wollongong , Innovation Campus, North Wollongong, New South Wales 2522, Australia.
authors.forename: Konstantin
authors.initials: K
authors.lastname: Konstantinov
authors.affiliation: Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials (AIIM) Facility, University of Wollongong , Innovation Campus, North Wollongong, New South Wales 2522, Australia.
authors.forename: Shi Xue
authors.initials: SX
authors.lastname: Dou
keywords: codoped graphene; flexible; liquid crystalline; oxygen reduction reaction; self-assembly; supercapacitor