Electrochemical Characterization of Films of Single-Walled Carbon Nanotubes and Their Possible Application in Supercapacitors

Abstract

Films of single‐wall carbon nanotubes (SWCNTs) were cast from suspensions in several solvents on the surface of a or electrode. Cyclic voltammetry of the films in did not show well‐resolved waves (as distinct from films of prepared in a similar manner). However, the increase in the effective capacitance of the electrode with a SWCNT film at vs. an was , which is about twice that of carbon electrodes in nonaqueous solvents. ©1999 The Electrochemical Society