TiO2/reduced graphene oxide composite based nano-petals for supercapacitor application: effect of substrate
| Autor: | G.S. Ghodake, Dae-Young Kim, M. V. Ramana Reddy, S. T. Jadhav, G. M. Lohar, A. V. Fulari |
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| Rok vydání: | 2018 |
| Předmět: |
Supercapacitor
Horizontal scan rate Materials science Graphene Scanning electron microscope Composite number Oxide 02 engineering and technology Substrate (electronics) 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Atomic and Molecular Physics and Optics 0104 chemical sciences Electronic Optical and Magnetic Materials law.invention chemistry.chemical_compound Chemical engineering chemistry law Electrical and Electronic Engineering Thin film 0210 nano-technology |
| Zdroj: | Journal of Materials Science: Materials in Electronics. 29:10814-10824 |
| ISSN: | 1573-482X 0957-4522 |
| DOI: | 10.1007/s10854-018-9146-5 |
| Popis: | In the present study, graphene oxide is synthesized using modified Hummers method. The X-ray diffraction spectroscopy (XRD), Fourier transform Raman spectroscopy (FT-Raman), energy-dispersive spectroscopy (EDS) and scanning electron microscopic (SEM) study is used to understand the successful synthesis of graphene oxide using the modified Hummers method. Secondly, the TiO2/RGO composite has developed using co-precipitation method and structural, morphological, electrochemical and supercapacitive properties are studied. The TiO2/RGO nano-composite shows the porous nanopetals like nature. The thin films of TiO2/RGO composite are developed using the doctor blade method on steel, and the copper substrate and the electrochemical and supercapacitive properties are studied. The TiO2/RGO composite thin films deposited on steel substrate are showing relatively less charge transfer resistance, and better specific capacitance than thin film deposited copper substrate. The TiO2/RGO thin films deposited on steel substrate shows maximum specific capacitance 192 Fg−1 at a scan rate of 5 mVs−1. |
| Databáze: | OpenAIRE |
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