화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2018년 봄 (04/25 ~ 04/27, 창원컨벤션센터)
권호 24권 1호, p.522
발표분야 에너지 환경
제목 Macro flow sensor for electrochemically generated electron mediator [Co(I)(CN)5]4- in 10 M KOH: Redox potential and current optimization through electrodes
초록 Electrochemical sensors at high concentrated electrolyte is still in infant stage. The present work aims to develop a suitable electrode to monitor electrogenerated [Co(I)(CN)5]4- in 10 M KOH solution using a in-situ flow sensor cell. First, suitable potential window for each electrode was derived using cyclic voltammetry under flow condition (solution slow rate between 0.5 to 3.0 L/min). Then suitable scan rate under the flow condition was identified using the selected electrode. The current at limiting current region or optimum peak region was selected for electrogenerated [Co(I)(CN)5]4- in 10 M KOH solution at suitable electrode. The electrochemically generated Co(I)(CN)5]4- by using potentiometric titration  at different electrolysis time was used to  make calibration plot that was used to correlate with current value measure using suitable electrode at different electrolysis time. The optimized calibration plot will be used to identify the electrochemically generated [Co(II)(CN)5]4- concentration by in-situ way.
Key words: Macro sensor, In-situ flow cell, high concentrated supporting electrolyte, mediator monitoring.
저자 Perumal Silambarasan, G. Muthuraman, 문일식
소속 순천대
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