한국수소및신에너지학회논문집 (Journal of Hydrogen and New Energy)

  • 제32권4호
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  • Pages.256-262
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  • 2021
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  • 1738-7264(pISSN)
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  • 2288-7407(eISSN)
한국수소및신에너지학회 (The Korean Hydrogen and New Energy Society)
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오존, 암모니아 순차적 처리를 통한 바나듐 레독스 흐름 전지용 활성화 카본 펠트 전극 개발

Development of Activated Graphite Felt Electrode Using Ozone and Ammonia Consecutive Post Treatments for Vanadium Redox Flow Batteries

  • 최한솔 (연세대학교 화공생명공학과) ;
  • 김한성 (연세대학교 화공생명공학과)
  • CHOI, HANSOL (Department of Chemical and Biomolecular Engineering, Yonsei University) ;
  • KIM, HANSUNG (Department of Chemical and Biomolecular Engineering, Yonsei University)
  • 투고 : 2021.07.30
  • 심사 : 2021.08.19
  • 발행 : 2021.08.30
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초록

A carbon felt electrode was prepared using ozone and ammonia sequential treatment and applied as an electrode for a vanadium redox flow battery (VRFB). The physical and electrochemical analyses demonstrate that the oxygen groups facilitate nitrogen doping in the carbon felt. Carbon felt (J5O3+NH3), which was subjected to ammonia heat treatment after ozone treatment, showed higher oxygen and nitrogen contents than carbon felt (J5NH3+O3), which was subjected to ammonia heat treatment first and then ozone treatment. From the charging/discharging of VRFB, the J5O3+NH3 carbon felt electrode showed 14.4 Ah/L discharge capacity at a current density of 150 mA /cm2, which was 15% and 33% higher than that of J5NH3+O3 and non-activated carbon felt (J5), respectively. These results show that ozone and ammonia sequential treatment is an effective carbon felt activation method to increase the performance of the vanadium redox flow battery.

키워드

과제정보

이 논문은 2016년도 한국전력공사의 재원으로 한전전력연구원(과제 번호: No. R16EA06)의 지원으로 수행된 연구 결과입니다.

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