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한국전기화학회 한국전기화학회

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Vol.21, No.1, February 2018

Development of Boron Doped Carbon Using CO2 Reduction with NaBH4 for Vanadium Redox Flow Battery수소화 붕소 나트륨 (NaBH4) 과 이산화탄소의 환원을 이용한 바나듐 레독스 흐름전지용 탄소 촉매 개발
JKES Vol.21, No.1, pp.1-5, February 2018
DOI : 10.5229/JKES.2018.21.1.1
Manho Han and Hansung Kim*한만호·김한성*
Dept. of Chemical and Biomolecular Engineering, Yonsei University연세대학교 화공생명공학과
In this study, boron - doped carbon was prepared by reducing carbon dioxide (CO2) at high temperature by using sodium borohydride (NaBH4). The boron - doped carbon was coated on carbon felt and applied as an electrode for a vanadium redox battery cell. As a result of electrochemical performance evaluation, reversibility of carbon felt coated with boron doped carbon compared to pure carbon felt was improved by about 20% and charge transfer resistance was reduced by 60%. In the charge / discharge results, energy density and energy efficiency were improved by 21% and 12.4%, respectively. These results show that carbon produced by reduction of CO2 can be used as electrode material for redox flow battery.
Keyword : Vanadium redox flow battery, CO2 reduction, Boron doped carbon, Boron functional group, Sodium borohydride

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