Morphology dependant electrochemical performance of hydrothermally synthesized NiCo2O4 nanomorphs
| Autor: | Satish P. Mardikar, G.N. Chaudhari, Anjali B. Bodade, Santosh J. Uke |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Materials Science (miscellaneous) chemistry.chemical_element 02 engineering and technology engineering.material 010402 general chemistry 01 natural sciences Hydrothermal circulation NiCo2O4 chemistry.chemical_compound Surfactant lcsh:TA401-492 Chemical Engineering (miscellaneous) lcsh:TJ163.26-163.5 Porosity Supercapacitor Horizontal scan rate Renewable Energy Sustainability and the Environment Spinel 021001 nanoscience & nanotechnology Hydrothermal 0104 chemical sciences Cobaltite Nickel PEG-600 Fuel Technology lcsh:Energy conservation chemistry Chemical engineering Electrode TEA-Ethoxylate engineering lcsh:Materials of engineering and construction. Mechanics of materials 0210 nano-technology |
| Zdroj: | Materials Science for Energy Technologies, Vol 3, Iss, Pp 289-298 (2020) |
| ISSN: | 2589-2991 |
| DOI: | 10.1016/j.mset.2019.11.004 |
| Popis: | The spinel nanostructured nickel cobaltite (NiCo2O4) with different morphologies has been successfully synthesized via facile surfactant assisted hydrothermal route. Tri-ethanolamine ethoxylate (TEA-ethoxylate) and PEG-600 were used as surfactants. The synthesized samples were characterized using various physicochemical techniques and were further used for fabrication of electrode for supercapacitor application. The effect of reaction temperature and surfactant on typical morphology of product and their electrochemical properties has been explored. The morphological features of as-synthesized samples were studied by Field emission scanning electron microscopy (FESEM). The surface area, pore volume and pore diameter were estimated by BET-BJH surface area analysis. The dandelion-like morphology of nickel cobaltite showed the highest surface area (58.76 m2 g−1) with uniform porosity. This morphology provides numerous electrochemical active sites for high electrochemical performance and resulted into the high specific capacitance (479 Fg−1 at scan rate 5 mVs−1) with high energy density (21.3 Whkg−1) and power density (150 Wkg−1). |
| Databáze: | OpenAIRE |
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