Sulphur cross-linked graphene nano platelets as structural composite supercapacitor electrodes

Reece, R, Lekakou, C and Smith, PA (2014) Sulphur cross-linked graphene nano platelets as structural composite supercapacitor electrodes 16th European Conference on Composite Materials, ECCM 2014.

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Abstract

Graphene nano platelets cross-linked with elemental sulphur have been used as supercapacitor electrode material to provide successful energy storage in a structural device. Chemical crosslinking of the composite produces a mechanically stable material, with both high conductivity and surface area. Characterisation was conducted using scanning electron microscopy and energy dispersive X-ray spectroscopy. Different concentrations of graphene-sulphur are investigated, along with addition of conductive carbon black and multiwall carbon nanotubes. The effects of these variables on the performance of the sulphur cross-linked graphene as a supercapacitor electrode are presented through impedance spectrometry, cyclic voltammetry and galvanostatic charge-discharge. Analysis of the structural performance of the material is conducted by flexural three-point-bend testing.

Item Type:	Article
Divisions :	Surrey research (other units)
Authors :	Name Email ORCID Reece, R Lekakou, C c.lekakou@surrey.ac.uk Smith, PA p.smith@surrey.ac.uk
Date :	1 January 2014
Depositing User :	Symplectic Elements
Date Deposited :	17 May 2017 13:32
Last Modified :	25 Jan 2020 00:05
URI:	http://epubs.surrey.ac.uk/id/eprint/839590

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