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| Type |
Poster Presentation |
| Area |
전기화학 |
| Room No. |
포스터발표장 |
| Time |
4월 21일 (금요일) 13:00~14:30 |
| Code |
ELEC.P-544 |
| Subject |
Electrochemical performance modification of organic catholyte materials by molecular tuning |
| Authors |
신동선, 조재필1, 홍성유2,*
UNIST 에너지 및 화학공학부, Korea
1UNIST 에너지공학부, Korea
2UNIST 나노생명화학공학부, Korea
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| Abstract |
Redox flow batteries (RFBs) are highlighted for large energy storage system, because of cost effective and ease of scalability. Especially, nonaqueous redox flow batteries (NRFBs) are widely studied to overcome problem of low electrochimical window in traditional water based system. Recent NRFB researches are mainly investigating viable redox active material for both electrode, notably, organic redox active materials give great attention to replace inorganic based materials due to environmentally benignancy, structural diversity and chemical tunability, etc. However, existing studies focus on redox site and simple frameworks, research for molecular tuning by functional group is rarely discussed, even though, study for increasing solubility. Molecular tuning by functional group can profoundly affect not only solubility, also electrochemical characteristic.
Herein we report 2-phenyl-1,4-naphthoquinone and its derivatives, for organic catholyte of NRFB system. Each derivatives showed different electrochemical performance by position and kind of functional group. Electrochemical performance were characterized with cyclic voltammetry, unique tube type Li metal battery, and theoretical approach by computational method.
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| E-mail |
dsshin@unist.ac.kr |
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119th General Meeting of the KCS