화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.22, No.6, 945-948, November, 2005
DOI10.1007/BF02705680  Export Citation
Thermal and Electrochemical Properties of Morpholinium Salts with Bromide Anion
Jong-Ho Cha, Ki-Sub Kim, Sukjeong Choi, Sun-Hwa Yeon, Huen Lee†, Hoon Sik Kim1, and Honggon Kim2
  • Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, 373-1 Guseong-dong, Yuseong-gu, Daejeon 305-701, Korea
  • 1Department of Chemistry, Kyung Hee University, 1 Hoegi-dong, Dondaemoon-gu, Seoul 130-701, Korea
  • 2Reaction Media Research Center, Korea Institute of Science and Technology, 39-1 Hawolgok-dong, Seongbuk-gu, Seoul 136-791, Korea
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The present work is a study of the thermal properties and electrochemical stabilities of N-ethyl-N-methylmorpholinium bromide ([Mor1,2][Br]), N-butyl-N-methylmorpholinium bromide ([Mor1,4][Br]), N-octyl-N-methylmorpholinium bromide ([Mor1,8][Br]), N-dodecyl-N-methylmorpholinium bromide ([Mor1,12][Br]), and N,N-dihydroxyethylmorpholinium bromide ([DHEMor][Br]). The melting points, decomposition temperatures, and electrochemical stabilities of the salts were measured by DSC (differential scanning calorimetry), TGA (thermogravimetric analysis), and CV (cyclic voltammogram), respectively. All salts were decomposed below approximately 230.00 ℃ and their melting points were above 100.00 ℃ except [DHEMor][Br], which melted at 75.17 ℃. [DHEMor][Br] appeared to possess the most wide liquid-phase range between melting point and decomposition temperature. The electrochemical windows of salts ranged from 3.3 V for [Mor1,8][Br] to 3.6 V for [Mor1,4][Br] and thus did not show any noticeable variation with cations used for salt synthesis.
Keywords:Liquid;Morpholinium Salt;DSC;TGA;CV (Cyclic Voltammogram)
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