Modification of Nafion Membranes by IL-Cation Exchange: Chemical Surface, Electrical and Interfacial Study

Figure 9

(a) Variation of the (a) real part of the impedance versus frequency and (b) imaginary part of the impedance versus frequency as a function of the Nafion-112 membrane contact time with the IL-solution. (o) 𝑡=0, (∆) 𝑡=1 h, (□) 𝑡=6 h, (◊) 𝑡=22 h, and (∇) 𝑡=40 h. Impedance results for the IL-solution alone (×), this means without any membrane in the measuring cell are also drawn.

(a)

(b)