레독스흐름전지(redox flow battery, RFB)의 구성 부품 중 전극은 전해액의 확산층 역할을 함과 동시에 전자의 통로 역할을 담당하여 출력에 직접적인 영향을 미치는 주요 부품이다. 본 연구는 Fe<...
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https://www.riss.kr/link?id=A107156268
2020
-
KCI등재,SCOPUS,ESCI
학술저널
639-645(7쪽)
0
0
상세조회0
다운로드국문 초록 (Abstract)
레독스흐름전지(redox flow battery, RFB)의 구성 부품 중 전극은 전해액의 확산층 역할을 함과 동시에 전자의 통로 역할을 담당하여 출력에 직접적인 영향을 미치는 주요 부품이다. 본 연구는 Fe<...
레독스흐름전지(redox flow battery, RFB)의 구성 부품 중 전극은 전해액의 확산층 역할을 함과 동시에 전자의 통로 역할을 담당하여 출력에 직접적인 영향을 미치는 주요 부품이다. 본 연구는 Fe<sup>2+</sup>/Fe<sup>3+</sup>와 V<sup>2+</sup>/V<sup>3+</sup>를 레독스 커플로 사용한 RFB 시스템에 chloric/sulfuric mixed acid 지지 전해액을 사용한 경우 전극 종류 및 활성화 정도에 따른 용량, 쿨롱 효율, 에너지 효율을 비교하여 최적의 전극 및 활성화 정도를 제시하였다. 실험에 사용된 5종의 탄소 전극을 사용한 단일셀 평가에서 모두 이론 용량에 근사한 값을 보여 신뢰성을 확보하였으며, 사용된 전극 중 GFD4EA는 상대적으로 우수한 에너지 효율 및 충방전 용량을 나타내었다. 활성화 온도에 따른 전기화학적 성능 고찰을 위하여 GFD4EA 전극을 공기분위기 하에서 400, 450, 500, 600 및 700 ℃에서 열처리하여 활성화하였다. 질량 변화, 주사전자현미경(SEM) 및 XPS 분석을 통하여 활성화 전 후의 물성 변화를 관찰하였으며, 각각의 온도에서 활성화된 전극을 적용한 RFB 단일셀 평가를 실시하여 전기화학적 성능을 비교하였다.
다국어 초록 (Multilingual Abstract)
Among the components of redox flow battery (RFB), the electrode serves as a diffusion layer of an electrolyte and a path for electrons and also is a major component that directly affects the RFB performance. In this paper, chloric/sulfuric mixed acidw...
Among the components of redox flow battery (RFB), the electrode serves as a diffusion layer of an electrolyte and a path for electrons and also is a major component that directly affects the RFB performance. In this paper, chloric/sulfuric mixed acidwas used as a supporting electrolyte in RFB system with Fe<sup>2+</sup>/Fe<sup>3+</sup> and V<sup>2+</sup>/V<sup>3+</sup> as redox couple. The optimum electrode and activation temperature were suggested by comparing the capacity, coulombic efficiency and energy efficiency according to the electrode type and activation temperature. In the RFB single cell evaluation using 5 types of carbon electrodes used in the experiments, all of them showed close to the theoretical capacity to retain the reliability of the evaluation results. GFD4EA showed relatively excellent energy efficiency and charge/discharge capacity. In order to investigate the electrochemical performance according to the activation temperature, GFD4EA electrode was activated by heat treatment at different temperatures of 400, 450, 500, 600 and 700 ℃ under an air atmosphere. Changes in physical properties before and after the activation were observed using electrode mass retention, scanning electron microscope (SEM), XPS analysis, and electrochemical performance was compared by conducting RFB single evaluation using electrodes activated at each temperature given above.
참고문헌 (Reference)
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5 A. Z. Weber, "Redox flow batteries : A review" 41 : 1137-1164, 2011
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8 P. C. Ghimire, "Optimization of thermal oxidation of electrodes for the performance enhancement in all-vanadium redox flow betteries" 155 : 176-185, 2019
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학술지 이력
연월일 | 이력구분 | 이력상세 | 등재구분 |
---|---|---|---|
2023 | 평가예정 | 해외DB학술지평가 신청대상 (해외등재 학술지 평가) | |
2020-01-01 | 평가 | 등재학술지 유지 (해외등재 학술지 평가) | |
2013-12-01 | 평가 | SCOPUS 등재 (등재유지) | |
2011-01-01 | 평가 | 등재학술지 유지 (등재유지) | |
2010-02-19 | 학술지명변경 | 외국어명 : Journal of the Korean Industrial and Engineering Chemistry -> Applied Chemistry for Engineering | |
2009-04-28 | 학술지명변경 | 외국어명 : Jpurnal of the Korean Industrial and Engineering Chemistry -> Journal of the Korean Industrial and Engineering Chemistry | |
2009-01-01 | 평가 | 등재학술지 유지 (등재유지) | |
2007-01-01 | 평가 | 등재학술지 유지 (등재유지) | |
2005-01-01 | 평가 | 등재학술지 유지 (등재유지) | |
2002-01-01 | 평가 | 등재학술지 선정 (등재후보2차) | |
1999-07-01 | 평가 | 등재후보학술지 선정 (신규평가) |
학술지 인용정보
기준연도 | WOS-KCI 통합IF(2년) | KCIF(2년) | KCIF(3년) |
---|---|---|---|
2016 | 0.32 | 0.32 | 0.34 |
KCIF(4년) | KCIF(5년) | 중심성지수(3년) | 즉시성지수 |
0.33 | 0.33 | 0.45 | 0.05 |