The electrochemical behavior of N-methyl-N-butylpyrrolidinium trifluoromethyltrifluoroborate (PYi14[CF3BF3]) with and without the addition of an alkali metal tetrafluoroborate (M[BF4], M = Li, Na) was investigated. The cathodic limit potential of PY14[CF3BF3] was -3.41 V vs. ferrocene/ferricenium (Fc/Fc+) which was about 1.0 V more negative than that of the 1-ethyl-3-methylimidazolium trifluoromethyltrifluoroborate (-2.48 V vs. Fc/Fc+). With the addition of 0.3 mol·kg-1 of Li[BF4] and Na[BF4] into PY14[CF3BF3], the redox peak of lithium and sodium could be observed at -3.2 and -3.1 V vs. Fc/Fc+, respectively. These redox potentials were nearly the same as that observed in trimethyl-propylammonium bis(trifluoromethylsulfonyl)imide (N1113[TFSI]) with the addition of Li[TFSI] and Na[TFSI].
|Number of pages||4|
|Journal||Journal of Rare Earths|
|Issue number||SUPPL. 1|
|Publication status||Published - Oct 2005|
All Science Journal Classification (ASJC) codes
- Geochemistry and Petrology