Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
180835 | Electrochemistry Communications | 2010 | 4 Pages |
Abstract
Protic ionic liquids (PILs) were used as novel electrolyte for carbon-based supercapacitors. The cyclic voltammograms in three-electrode cells show reversible redox humps, revealing pseudo-faradaïc charge transfer. Oxidative treatment of activated carbon enriches the surface functionality and leads to a higher capacitance owing to a stronger pseudo-faradaïc contribution. The capacitors using PILs demonstrate a higher voltage window than with aqueous H2SO4, while keeping the same values of capacitance, and being able to operate at lower temperature. A combination of activated carbons and PILs holds promise for improving the energy characteristics of supercapacitors.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
R. Mysyk, E. Raymundo-Piñero, M. Anouti, D. Lemordant, F. Béguin,