화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2017년 봄 (05/10 ~ 05/12, 광주 김대중컨벤센센터(Kimdaejung Convention Center))
권호 21권 1호
발표분야 환경에너지
제목 Investigation on Storage Ratio of Captive Ions in Flow-Electrode of FCDI
초록 Flow-electrode, novel concept to overcome for limitation of capacitive deionization (CDI), mainly consists of electrode material and electrolyte. However, it has not yet been specifically investigated whether the flow-electrode uses ion adsorption capacity completely in desalting process of flow-electrode CDI (FCDI) system, which is related with operating costs.
An experiment was conducted to observe how many ion adsorption capacity of flow-electrode is utilized by a FCDI system. For this work, the relationship between the OCV (open circuit voltage) of FCDI cell and the amount of charged ions is determined by a comparison of OCV difference with respect to the number of times the flow electrode is charged. Furthermore, the ion storage ratio of constituent parts of flow-electrode was deduced from change of dissolved ion concentration in electrolyte. The results demonstrate that the flow-electrode does not fully use adsorption capacity and need further detailed investigations.
저자 전성일1, 김동국2, 윤제용1
소속 1서울대, 2한국에너지기술(연)
키워드 flow-elecotrode; capacitive deionization; FCDI; CDI; ion adsorption; desalination;
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