title: A new approach to nanoporous graphene sheets via rapid microwave-induced plasma for energy applications.
abstract: We developed a novel approach to the fabrication of three-dimensional, nanoporous graphene sheets featuring a high specific surface area of 734.9 m(2) g(-1) and an ultrahigh pore volume of 4.1 cm(3) g(-1) through a rapid microwave-induced plasma treatment. The sheets were used as electrodes for supercapacitors and for the oxygen reduction reaction (ORR) for fuel cells. Argon-plasma grown sheets exhibited a 44% improvement of supercapacitive performance (203 F g(-1)) over the plasma grown sheets (141 F g(-1)). N-doped sheets with Co3O4 showed an outstanding ORR activity evidenced from the much smaller Tafel slope (42 mV/decade) than that of Pt/C (82 mV/decade), which is caused by the high electrical conductivity of the graphene sheets, the planar N species content and the nanoporous morphology.
authors.affiliation: School of Chemical Engineering, The University of Queensland, Brisbane, St Lucia, Australia.
authors.forename: Taiwo
authors.initials: T
authors.lastname: Odedairo
authors.forename: Jun
authors.initials: J
authors.lastname: Ma
authors.forename: Yi
authors.initials: Y
authors.lastname: Gu
authors.forename: Wei
authors.initials: W
authors.lastname: Zhou
authors.forename: Jian
authors.initials: J
authors.lastname: Jin
authors.forename: X S
authors.initials: XS
authors.lastname: Zhao
authors.forename: Zhonghua
authors.initials: Z
authors.lastname: Zhu