https://ogma.newcastle.edu.au/vital/access/ /manager/Index en-au 5 https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:36301 Tue 19 Jan 2021 18:46:56 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:30947 2·g^{− 1}) with large pore volume (2.987 cm³·g^{− 1}), unique interconnected mesoporous structure and uniform oxygen-containing functional groups in layered graphene framework, which offer a favorable and efficient pathway for the electrolyte propagation and transportation. The electrodes of supercapacitors made from these graphene nanosheets exhibit a maximum specific capacitance of 272 F·g^{− 1} at the current density of 50 mA·g^{− 1} in aqueous electrolyte, and possess excellent rate capability, low resistance, superior cycling performance with over 96.5% initial capacitance retention after 8000 cycles. The corresponding supercapacitors deliver a desirable energy density of 6.47 Wh·kg^{− 1} at a powder density of 2250 W·kg^{− 1}. This study demonstrates a promising synthesis route for large-scale production of graphene nanosheets from renewable and green humic acid for high performance supercapacitors]]> Sat 24 Mar 2018 07:33:41 AEDT ]]>