化学学报 ›› 2006, Vol. 64 ›› Issue (18): 1929-1932. 上一篇    下一篇

研究简报

乙酸-三氟化硼乙醚混合质子电解质

马茶1, 徐景坤*,1, 周卫强1, 杜玉扣2   

  1. (1江西科技师范学院江西省有机功能分子重点实验室 南昌 330013)
    (2苏州大学化学化工学院物理化学研究室 苏州 215006)
  • 投稿日期:2005-10-24 修回日期:2005-12-21 发布日期:2006-09-28
  • 通讯作者: 徐景坤

Mixed Proton Electrolyte of Acetic Acid Containing Boron Trifluoride Diethyl Etherate

MA Cha1; XU Jing-Kun*,1; ZHOU Wei-Qiang1; DU Yu-Kou2   

  1. (1 Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science & Technology Normal Univer-sity, Nanchang 330013)
    (2 Department of Chemistry and Chemical Engineering, Suzhou University, Suzhou 215006)
  • Received:2005-10-24 Revised:2005-12-21 Published:2006-09-28
  • Contact: XU Jing-Kun

乙酸和三氟化硼乙醚(BFEE)本身离子电导率很低, 向乙酸中加入少量BFEE可以形成良好的混合质子电解质溶液. 随着乙酸中BFEE浓度的变化, 混合电解质溶液的离子电导率迅速上升, 当BFEE摩尔分数为65%时具有最大值, 达5800 μS/cm. 红外光谱和1H NMR研究表明混合电解质中的主要导电离子为CH3COOH2和CH3COOBF3.

关键词: 混合质子电解质, 乙酸, 三氟化硼乙醚, 1H NMR

Although the ionic conductivities of pure acetic acid and pure boron trifluoride diethyl etherate (BFEE) are very low, acetic acid containing certain amount of boron trifluoride diethyl etherate can form good mixed proton electrolyte with ionic conductivity maximum of 5.8×103 μS/cm when BFEE molar fraction is 65%. The IR and 1H NMR spectra of the mixed electrolyte indicate that the main conductive species in mixed electrolytes are CH3COOH2 and CH3COOBF3.

Key words: mixed proton electrolyte, acetic acid, boron trifluoride diethyl etherate, 1H NMR