화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2018년 가을 (10/24 ~ 10/26, 대구 EXCO)
권호 24권 2호, p.1433
발표분야 분리기술(Separation Technology)
제목 Li1-xNi0.5Mn1.5O4/Ag for electrochemical lithium recovery from brine and its optimized performance via response surface methodology
초록 Electrochemical Li+recovery using delithiated Li1-xNi0.5Mn0.5O4 (NMO) paired with silver (Ag)was investigated. Using brine as Li+ feed source, NMO/Ag electrochemically captured Li+and Cl- at an applied current (C-rate) and operation time (min step-1). The captured ions were subsequently released as LiCl in a recovery solution by reversing the current polarity. Process optimization through response surface methodology using central composite design revealed optimum conditions at C-rate = 1.05C for t = 20 min step-1with only 1.30 - 1.50 W•h mol−1 Li+ to recover 1.25 mmol Li+ g-1 NMO at 98.1 % Li+ purity. In cycled experiments (n = 20), NMO/Ag selectively accumulated Li+from brine demonstrating its stability and selectivity. This research was supported by Basic Science Research Program through the NRF of Korea funded by the Ministry of Education(2018R1D1A1B07048007 and 2009-0093816) and by the Ministry of Science and ICT (No. 2017R1A2B2002109).
저자 Mengesha Daniel Nigusse, Anelyn Bendoy, Rosemarie Ann Cuevas, Grace Nisola, 정욱진, Lawagon Chosel, 이성풍
소속 명지대
키워드 추출
E-Mail
원문파일 초록 보기