화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2019년 봄 (04/24 ~ 04/26, 제주국제컨벤션센터)
권호 25권 1호, p.715
발표분야 재료(Materials)
제목 A High-Capacity, Reversible Liquid Organic Hydrogen Carrier:  Production of Hydrogen and an Application to a Fuel Cell
초록  Hydrogen storage in the form of liquid chemical is very essential because the supply and demand of hydrogen can happen at different site. In this study, the application of a hydrogen storage material which is a eutectic mixture of biphenyl (35 wt%) and diphenylmethane (65 wt%) has been demonstrated. The proposed material is able to reversibly store and produce molecular hydrogen with 6.9 wt% and 60 g-H2 L-1 of gravimetric and volumetric hydrogen storage capacities. Experimentally, conversion of dehydrogenation was higher than 99%, and hydrogen produced by dehydrogenation reaction had a purity of over 99.9%, with negligible side reactions. Further, this was confirmed via NMR spectroscopy. After a total of 9 cyclic tests of hydrogenation and dehydrogenation, there was a loss of less than 1%. Finally, a dehydrogenation system is designed and operated in conjunction with a PEM fuel cell that can generate higher than 0.5 kW of electrical power continuously, verifying its capability as a promising liquid organic hydrogen carrier.
저자 장문정1, 조영석1, 이원종1, 신병수2, 손현태1, 정향수1, 장성철1, 김영천1, 곽상규3, 강정원2, 윤창원1
소속 1한국과학기술(연), 2고려대, 3울산과학기술원
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