| Autor: |
Sivalingam Ramesh, Hemraj Yadav, Chinna Bathula, Surendra Shinde, Arumugam Sivasamy, Hyun-Seok Kim, Heung Soo Kim, Joo-Hyung Kim |
| Jazyk: |
angličtina |
| Rok vydání: |
2020 |
| Předmět: |
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| Zdroj: |
Journal of Materials Research and Technology, Vol 9, Iss 5, Pp 11464-11475 (2020) |
| Druh dokumentu: |
article |
| ISSN: |
2238-7854 |
| DOI: |
10.1016/j.jmrt.2020.08.037 |
| Popis: |
In this study, Co3O4@NGO/polyindole composites were synthesized using ultrasonication followed by hydrothermal processes. The structure and morphology of composites were investigated by analytical techniques such as Fourier-transform infrared spectroscopy (FTIR), Raman spectroscopy, X-ray diffraction analysis (XRD), X-ray photo electron spectroscopy (XPS), scanning electron microscopy (SEM), high resolution transmission electron microscopy (HR-TEM) and Brunauer–Emmett–Teller (BET) surface analysis. The electrochemical performances of the composites were studied by cyclic voltammetry (CV), galvanostatic charge discharge (GCD)and electrochemical impedance spectroscopy analysis (EIS) measurements. As a proof of concept demonstration we have employed Co3O4@NGO/polyindole (PIN) as an electrode in supercapacitor. The Co3O4@NGO/PIN composite showed a capacitance of ∼680 F g−1 at 0.5 Ag−1 and had an excellent cycling stability of 96% after 5000 cycles at 0.5 Ag−1 indicating the material as a potential candidate in supercapacitor applications. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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