Synthesis of manganese oxide nanoparticles from hydrothermal method as electrode material for high performance supercapacitor applications
With the expansion of modern technology and the depletion of fossil fuels, new energy storage systems are required. Lithium-ion batteries, which are believed to be a promising energy source, are unable to match the rising need for increased power density, and the Earth's crust has a finite supp...
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| 格式: | Final Year Project |
| 語言: | English |
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Nanyang Technological University
2022
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| 主題: | |
| 在線閱讀: | https://hdl.handle.net/10356/156250 |
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| 總結: | With the expansion of modern technology and the depletion of fossil fuels, new energy storage systems are required. Lithium-ion batteries, which are believed to be a promising energy source, are unable to match the rising need for increased power density, and the Earth's crust has a finite supply of Li. As a result, supercapacitors are required to tackle the energy crisis, and they are made of earth-friendly, non-toxic materials. Manganese oxide (Mn3O4) has so far been identified as a viable supercapacitor electrode material.
In this project, Mn3O4 nanoparticles were synthesized via hydrothermal reaction from Mn(NO3)2 at varying durations and temperatures. Through this eco-friendly and easy-to-execute synthesis, relatively high purity Mn3O4 particles were formed. The morphology and crystallinity were then studied via Scanning Electron Microscope (SEM) and X-Ray Diffraction (XRD) respectively.
Thereafter, the Mn3O4 sample was then deposited on activated carbon paper. The electrochemical characteristics were investigated utilizing a three-electrode cell setup using cyclic voltammetry (CV) and galvanostatic charge-discharge (GCD) profiles.
Finally, a study was evaluated to determine how the varying temperature and time of the hydrothermal process affects the shape and electrochemical properties of Mn3O4. |
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