Figure 3

Electrochemical properties of VO2/rGO composites, VO2(B) nanobelts and rGO. (a) CV curves (5 mV s−1), (b) galvanic charge/discharge time curves (1 A g−1), (c) CV curves at different scan rates and (d) galvanic charge/discharge time curves at different current density of VO2/rGO-2. (e) Rate capabilities and (f) cyclic stability test of VO2/rGO-2, VO2(B) nanobelts and rGO.