3-dimensional electrode structure for enhanced electrochemical performance of in-plane microsupercapacitors
This thesis focuses on the enhancement of electrochemical performance of in-plane microsupercapacitor including electric double layer capacitor (EDLC) and pseudocapacitors. Enhancement was achieved through a facile synthesis method in which 3-dimensional interconnected nanowire network was obtained....
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| Format: | Thesis-Doctor of Philosophy |
| Language: | English |
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Nanyang Technological University
2020
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| Online Access: | https://hdl.handle.net/10356/144133 |
| _version_ | 1826128991506923520 |
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| author | Wang, Jing Yuan |
| author2 | Zhang Qing |
| author_facet | Zhang Qing Wang, Jing Yuan |
| author_sort | Wang, Jing Yuan |
| collection | NTU |
| description | This thesis focuses on the enhancement of electrochemical performance of in-plane microsupercapacitor including electric double layer capacitor (EDLC) and pseudocapacitors. Enhancement was achieved through a facile synthesis method in which 3-dimensional interconnected nanowire network was obtained. Used as a template for deposition of electroactive material, the nanostructure allows large interfacial area where charge transfer can efficiently occur. The thick layer also permits high material loading to achieve high areal capacitance and energy density performance. Both metal oxide and Polypyrrole-based microsupercapacitor fabricated with the nanostructure design showed remarkable capacitance and energy density performance. Lastly, efforts were made to enhance the electrochemical cycling performance of Polypyrrole-based microsupercapacitor through the investigation of Polypyrrole anionic dopants and electrolytes effect. Large anionic dopant produced mechanically robust Polypyrrole which reduced material swelling and de-doping during charge and discharge process resulting in superior electrochemical cycling performance. |
| first_indexed | 2024-10-01T07:33:34Z |
| format | Thesis-Doctor of Philosophy |
| id | ntu-10356/144133 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:33:34Z |
| publishDate | 2020 |
| publisher | Nanyang Technological University |
| record_format | dspace |
| spelling | ntu-10356/1441332023-07-04T17:39:47Z 3-dimensional electrode structure for enhanced electrochemical performance of in-plane microsupercapacitors Wang, Jing Yuan Zhang Qing School of Electrical and Electronic Engineering Wintech Nano-Technology Services Pte. Ltd. eqzhang@ntu.edu.sg Engineering::Electrical and electronic engineering::Microelectronics This thesis focuses on the enhancement of electrochemical performance of in-plane microsupercapacitor including electric double layer capacitor (EDLC) and pseudocapacitors. Enhancement was achieved through a facile synthesis method in which 3-dimensional interconnected nanowire network was obtained. Used as a template for deposition of electroactive material, the nanostructure allows large interfacial area where charge transfer can efficiently occur. The thick layer also permits high material loading to achieve high areal capacitance and energy density performance. Both metal oxide and Polypyrrole-based microsupercapacitor fabricated with the nanostructure design showed remarkable capacitance and energy density performance. Lastly, efforts were made to enhance the electrochemical cycling performance of Polypyrrole-based microsupercapacitor through the investigation of Polypyrrole anionic dopants and electrolytes effect. Large anionic dopant produced mechanically robust Polypyrrole which reduced material swelling and de-doping during charge and discharge process resulting in superior electrochemical cycling performance. Doctor of Philosophy 2020-10-15T02:54:00Z 2020-10-15T02:54:00Z 2020 Thesis-Doctor of Philosophy Wang, J. Y. (2020). 3-dimensional electrode structure for enhanced electrochemical performance of in-plane microsupercapacitors. Doctoral thesis, Nanyang Technological University, Singapore. https://hdl.handle.net/10356/144133 10.32657/10356/144133 en This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0). application/pdf Nanyang Technological University |
| spellingShingle | Engineering::Electrical and electronic engineering::Microelectronics Wang, Jing Yuan 3-dimensional electrode structure for enhanced electrochemical performance of in-plane microsupercapacitors |
| title | 3-dimensional electrode structure for enhanced electrochemical performance of in-plane microsupercapacitors |
| title_full | 3-dimensional electrode structure for enhanced electrochemical performance of in-plane microsupercapacitors |
| title_fullStr | 3-dimensional electrode structure for enhanced electrochemical performance of in-plane microsupercapacitors |
| title_full_unstemmed | 3-dimensional electrode structure for enhanced electrochemical performance of in-plane microsupercapacitors |
| title_short | 3-dimensional electrode structure for enhanced electrochemical performance of in-plane microsupercapacitors |
| title_sort | 3 dimensional electrode structure for enhanced electrochemical performance of in plane microsupercapacitors |
| topic | Engineering::Electrical and electronic engineering::Microelectronics |
| url | https://hdl.handle.net/10356/144133 |
| work_keys_str_mv | AT wangjingyuan 3dimensionalelectrodestructureforenhancedelectrochemicalperformanceofinplanemicrosupercapacitors |