Study of Polyether Solvation Mechanisms Using UV/Visible Spectroscopy.

摘要

The work described in this review demonstrates that UV/Visible spectroscopy is a very useful technique for learning about the coordination of certain transition metal ions in polymer electrolytes. The results demonstrate unequivocally that complex ions exist in polymer electrolytes of this sort, particularly at moderate to high salt concentrations and at elevated temperatures. Furthermore, it appears that free anions and anionic complex species are the predominant charge carriers in the electrolytes studied here. In fact, out studies indicate that the principal mechanism of cation mobility in Co(II) and Ni(II)-PEG electrolytes is by the motion of complex anions, not the diffusion of uncomplexed cations.... UV/Visible spectroscopy, Transition metal ions, Polymer electrolytes, Complex ions, High salt concentrations, Elevated temperatures, Anionic complex species, Charge carriers, Cation mobility