rGO/CuO/PEDOT nanocomposite formation,its characterisation and electrochemical performances for supercapacitors |
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| Authors: | Murat Ates Alpay Garip Ozan Yörük Yuksel Bayrak Ozge Kuzgun Murat Yildirim |
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| Affiliation: | 1. Atespolymer Research group, Physical Chemistry Division, Department of Chemistry, Faculty of Arts and Sciences, Namik Kemal University, Tekirdag, Turkeymates@nku.edu.tr;3. Atespolymer Research group, Physical Chemistry Division, Department of Chemistry, Faculty of Arts and Sciences, Namik Kemal University, Tekirdag, Turkey;4. Department of Chemistry, Faculty of Sciences, Trakya University, Edirne, Turkey;5. Department of Chemistry, Faculty of Sciences, Trakya University, Edirne, Turkey |
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| Abstract: | ABSTRACTSupercapacitor properties of rGO, CuO, PEDOT and rGO/CuO at [rGO]o/[CuO]o?=?1:1; 1:1.5; 1:2 and rGO/CuO/PEDOT nanocomposite at [rGO]o/[CuO]o/[EDOT]o?=?1:1:1; 1:1:3; 1:1:5 were investigated using chemical reduction of GO and in-situ polymerisation process. SEM-EDX, HRTEM, BET surface area analysis confirm the nanocomposite formations. Nanocomposite materials are also analysed through FTIR-ATR, Raman, TGA-DTA, GCD, CV and EIS. The highest specific capacitance of C sp?=?156.7 F/g at 2?mV/s is determined as rGO/CuO/PEDOT at [rGO]o/[CuO]o/[EDOT]o?=?1:1:5. In addition, two-electrode supercapacitor device for rGO/CuO/PEDOT at [rGO]o/[CuO]o/[EDOT]o?=?1:1:5 are found to provide a maximum specific energy (E?=?14.15 Wh/kg at 20?mA) and specific power (P?=?24730 W/kg at 50?mA), electrical serial resistance (ESR?=?13.33 Ω) with good capacity retention after 3000 cycles. An equivalent circuit model of LR1(CR2)(QR3) is proposed to interpret the EIS data. The supercapacitor performance of the rGO/CuO/PEDOT nanocomposite electrode indicates the synergistic effect of hybrid supercapacitors. |
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| Keywords: | Nanocomposite CuO reduced graphene oxide PEDOT supercapacitor TEM analysis |
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