Microwave-assisted hydrothermal synthesis of high specific surface area metal oxides composites and their pseudo-capacitor applications
High specific surface area nanosphere MnOx and nanorod NiCo2O4 has been fabricated on nickel foam and used as an electrode for supercapacitors with Chinese ink acting as a dispersion agent. Both samples are prepared via microwave-technology hydrothermal synthesis which involves chemical co-precip...
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| Format: | Final Year Project |
| Language: | English |
| Published: |
2016
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| Subjects: | |
| Online Access: | http://hdl.handle.net/10356/66393 |
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| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | High specific surface area nanosphere MnOx and nanorod NiCo2O4 has been fabricated on
nickel foam and used as an electrode for supercapacitors with Chinese ink acting as a dispersion
agent. Both samples are prepared via microwave-technology hydrothermal synthesis which
involves chemical co-precipitation and post-annealing. The MnOx and NiCo2O4 are
characterized using FESEM & XRD. The electrochemical performances ofMnOx and NiCo2O4
are evaluated in three electrode cell with cyclic voltammetry, galvanostatic charge and
discharge and electrochemical impedance spectroscopy to study the parameters that affect the
specific capacitance. The excellent electrochemical performance is due to the high specific area
of MnOx and NiCo2O4 grown from the microwave-assisted process. |
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