Exploring the functional properties of CuCo2O4/CuS nanocomposite as improved material for supercapacitor electrode
| Autor: | A.M. Aldhafiri, Zein K. Heiba, Noura M. Farag, A.M. El-Naggar, Mohamed Bakr Mohamed, M.A. Deyab |
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| Rok vydání: | 2021 |
| Předmět: |
lcsh:TN1-997
Photoluminescence Materials science Composite 02 engineering and technology 01 natural sciences Biomaterials 0103 physical sciences Supercapacitors Fourier transform infrared spectroscopy High-resolution transmission electron microscopy lcsh:Mining engineering. Metallurgy 010302 applied physics Nanocomposite Rietveld refinement Metals and Alloys Structure 021001 nanoscience & nanotechnology CuCo2O4 Surfaces Coatings and Films Chemical engineering Ceramics and Composites Particle size Crystallite Cyclic voltammetry CuS 0210 nano-technology Optical |
| Zdroj: | Journal of Materials Research and Technology, Vol 10, Iss, Pp 1415-1426 (2021) |
| ISSN: | 2238-7854 |
| Popis: | The functional properties of (1-x)CuCo2O4/(x)CuS nanocomposite as an improved supercapacitor electrode have been investigated. X-ray diffraction with Rietveld analysis, HRTEM, FESEM, and FTIR techniques were employed for the full structural characterization of the nanocomposites. The particle size and morphology, the phase composition and percentage, the lattice parameters, the cation distribution and the crystallite size were accurately determined for the prepared samples. The variation of the bandgap of the phases developed with the alloying parameter (x) was studied utilizing the UV diffuse spectrum. All samples exhibited a blue shift except the sample with x = 0.25, it revealed a redshift. The photoluminescence intensity and the color emitted were affected by CuCo2O4 and CuS alloying. The preliminary test of cyclic voltammetry (CV) proved that alloying of CuS nanoparticles with CuCo2O4 enhanced the electrochemical activities, and optimum performance achieved with allying ratio x = 0.25. |
| Databáze: | OpenAIRE |
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