文献类型：期刊文章

作　　者：杨家振[1] 金一[1] 曹英华[1] 孙立贤[2] 谭志诚[2]

机构地区：[1]辽宁大学化学系,沈阳110036 [2]中国科学院大连化学物理研究所,大连116023

出　　处：《高等学校化学学报》

基　　金：国家自然科学基金 (批准号 :2 0 0 410 0 5 )资助

年　　份：2004

卷　　号：25

期　　号：9

起止页码：1733-1735

语　　种：中文

收录情况：AJ、BDHX、BDHX2000、CAS、CSCD、CSCD2011_2012、EI、IC、JST、RCCSE、RSC、SCIE、SCOPUS、WOS、ZGKJHX、核心刊

摘　　要：In this paper three air and water-stable room temperature ionic liquids(RTILs): N-butylpyridinium tetrafluoroborate(BPBF 4), 1-butyl-3-methylimidazolium tetrafluoroborate(BMIBF 4), and 1-ethyl-3-methylimidazolium ethyl sulfate(EMISE) were synthesized. Their electrochemical windows were measured by cyclic voltammetry at 303.15-343.15 K. The cyclic voltammograms show the order of windows which represent the electrochemical stability of RTIL is: BPBF 4<BMIBF 4<EMISE. When temperature increases the windows reduce, that is, the stability of RTIL reduces with the increase of temperature. The difference among the windows of the three RTILs is mainly dependent on the order of the reductive limits of the cations: EMI+--1.40 V->BMI+--0.95 V->BP+-0.02 V-. It is very interesting that while the oxidative limit of anion BF- 4 and the reductive limit of all the cations reduce with the increase of temperature, but the oxidative limit of anion SE- increases.

关 键 词：室温离子液体 电化学稳定性 BPBF4  BMIBF  EMISE  

分 类 号：O646]