Design and assembly of supercapacitor based on reduced graphene oxide/TiO2/polyaniline ternary nanocomposite and its application in electrical circuit
Yükleniyor...
Dosyalar
Tarih
2021
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer Science and Business Media Deutschland GmbH
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Supercapacitor devices are used as energy storage technology for electrical circuits. Graphene, metal oxide, and conducting polymers are used as electroactive materials to enhance energy, power density, and cycle life. The present study uses TiO2 and rGO materials, which are added to polyaniline (PANI). The nanocomposite structure can be observed using different initial feed ratios of rGO, TiO2, and aniline monomer as [rGO]o/[TiO2]o/[ANI]o = 1:5:1, 1:5:2, 1:5:3, 1:5:4, and 1:5:5. Fourier transform infrared–attenuation–transmission reflectance, scanning electron microscopy–energy-dispersive X-ray analysis, Brunauer–Emmett–Teller surface area, thermal-gravimetric analysis (TGA-DTA), X-ray diffraction (XRD), Raman spectroscopy, X-ray photon spectroscopy, and transmission electron microscopy analysis are conducted. Electrochemical performances of a ternary nanocomposite material are carried out by cyclic voltammetry, galvanostatic charge–discharge measurements, and electrochemical impedance spectroscopy (EIS). According to results, rGO/TiO2/PANI nanocomposite shows much better performance than its individual components in terms of specific capacitance, energy density, power density, and cycle life. The highest specific capacitance is obtained as Csp = 692.87 F/g at 2 mV/s for [rGO]o/[TiO2]o/[ANI]o = 1:5:4. A new real circuit model of LRs(CR1)(QR2) is adopted to our device, which supplies enough energy to the light LED lamp (1.8 V) for 3 min. As a result, rGO/TiO2/PANI nanocomposite may be used as a promote candidate for energy storage systems. Graphic abstract: [Figure not available: see fulltext.]. © 2021, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.
Açıklama
Anahtar Kelimeler
Electrical circuits, Hybrid supercapacitor, Polyaniline, Reduced graphene oxide, TiO2, Aniline, Capacitance, Cyclic voltammetry, Electric discharges, Electric network parameters, Electrochemical impedance spectroscopy, Energy dispersive X ray analysis, Energy storage, Graphene, Gravimetric analysis, High resolution transmission electron microscopy, Metals, Oxide minerals, Polyaniline, Reduced Graphene Oxide, Scanning electron microscopy, Spectrum analysis, Supercapacitor, Thermogravimetric analysis, Timing circuits, Titanium dioxide, Transmissions, X ray diffraction analysis, Discharge measurements, Electroactive material, Electrochemical performance, Energy storage technologies, Fourier transform infra reds, Nano-composite structure, Ternary nanocomposites, Thermal gravimetric analysis, TiO2 nanoparticles
Kaynak
Polymer Bulletin
WoS Q Değeri
Q3
Scopus Q Değeri
Q2
