High-performance asymmetric supercapacitor from nanostructured tin nickel sulfide (SnNi2S4) synthesized via microwave-assisted technique
| Autor: | Matheswaran Manickam, Aiswarya Devi Sekar, Nivedhini Iswarya Chandrasekaran, Arivalagan Pugazhendhi, Harshiny Muthukumar |
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| Rok vydání: | 2018 |
| Předmět: |
Supercapacitor
Nanocomposite Materials science Nickel sulfide Sulfidation chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Electrochemistry 01 natural sciences Capacitance Atomic and Molecular Physics and Optics Energy storage 0104 chemical sciences Electronic Optical and Magnetic Materials chemistry.chemical_compound chemistry Chemical engineering Materials Chemistry Physical and Theoretical Chemistry 0210 nano-technology Tin Spectroscopy |
| Zdroj: | Journal of Molecular Liquids. 266:649-657 |
| ISSN: | 0167-7322 |
| Popis: | The hierarchical SnNi2S4 (TNS) nanocomposite synthesized via a microwave-assisted technique has been demonstrated. Sulfidation of Ni-Sn acetate hydroxide with thioacetamide was conducted in the presence of alcohol to produce SnNi2S4 nanocomposites. The SnNi2S4 nanocomposites exhibited excellent physiochemical properties with superior electrochemical performances. Owing to the improved faradaic redox reaction, enhanced surface area and exceptional mass transfer nature, the nanocomposites displayed a better charge/discharge stability, high specific capacitance and long-term cycling life. Assembled asymmetric supercapacitor constructed with SnNi2S4 nanocomposites operating at the potential 1.401 V showed a high energy density and power density. The long-term cycle life with high capacitance retention would satiate the growing demand for energy-related devices. The unique SnNi2S4 nanocomposites not only express promising roles in energy storage but also stand for an unlimited capability of heterostructured materials. |
| Databáze: | OpenAIRE |
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