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| Type |
Poster Presentation |
| Area |
Electrochemistry |
| Room No. |
Grand Ballroom |
| Time |
10월 19일 (금요일) 11:00~12:30 |
| Code |
ELEC.P-480 |
| Subject |
Exploring the Capacitive Behavior of Carbon Electrode Functionalized by Aggregated Cyclic-Edge Ethers |
| Authors |
Junghyun Lee, Jin Ho Bang*
Department of Bionano Technology, Hanyang University, Korea
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| Abstract |
While oxygen-containing functional groups on sp2-carbon structure can enhance capacitance by redox faradaic reactions, they often hinder the access of electrolyte ions, decrease electrical conductivity, and promote energy loss as a form of leakage current. Here, we explored the capacitive behavior of cyclic-edge ether groups introduced onto microporous sp2-carbon monoliths. Unlike oxygen-containing functional groups, the introduction of the cyclic-edge ether group barely distorts sp2 carbon network while significantly promoting the accessibility of electrolyte ions. This leads to a superior capacitive behavior, but suppresses self-discharge occurred via parasitic surface redox reactions. In-depth electrochemical impedance spectroscopy provide insight into this novel functionality and implications in the development of nanoporous carbons for supercapacitor applications. |
| E-mail |
junghyun9109@naver.com |
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122nd General Meeting of the KCS