Magnetic conductive polymer-graphene nanocomposites based supercapacitors for energy storage
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Date
2017
Journal Title
Journal ISSN
Volume Title
Publisher
Pergamon-Elsevier Science Ltd
Access Rights
info:eu-repo/semantics/closedAccess
Abstract
In this study, supercapacitors based on magnetic conductive polymer-graphene nanocomposites were investigated. The graphene was synthesized from graphite oxide and graphite by Hummers and electrochemical exfoliation method, respectively. The graphene was characterized using Raman spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray diffraction. The nanocomposite was obtained by mixing graphene with polypyrrole or magnetic polypyrrole. The conductive ink consisted of the nanocomposite, solvent and binder. The supercapacitor electrodes were manufactured with the conductive ink by using copper foil. Supercapacitor cells were composed of the separator (PTFE) and electrolyte (ionic liquid materials or acids). The cells were characterized by measurement of the specific capacitance and charge -discharge characteristics. Cyclic Voltammogram (CV) plots and scan rate studies showed a good cell structure and charge-discharge characteristics. So far, 255 Fig specific capacitance values have been achieved. Electrochemical impedance spectroscopy analysis showed a healthy cell performance and a fast capacitor response. (C) 2017 Elsevier Ltd. All rights reserved.
Description
2016 SEEP Network Annual Conference -- SEP 19-21, 2016 -- Arlington, VA
Keywords
Supercapacitors, EDLC, Graphene, Nanocomposite, Conductive graphene ink, Magnetic polymer
Journal or Series
Energy
WoS Q Value
Q1
Scopus Q Value
Q1
Volume
138
