Research Article

Preparation of a Nitrogen-Doped Reduced Graphene Oxide-Modified Graphite Felt Electrode for VO2+/VO2+ Reaction by Freeze-Drying and Pyrolysis Method

Figure 9

Charge-discharge tests for air-heated GF, N-rGO-500/GF, N-rGO-700/GF, and N-rGO-900/GF.