In turn, the cyclic voltammograms for the MOF@CNT film measured at 0.001 Vs -1 (panel d) display much broader bell-shaped positive and negative peaks at potentials up to ± 0.45 V. The higher potential edge of the peak can be attributed to redox reactions involving the Cu-triazole MOF and OMIM-Cl. The positive peak is attributed to the chlorination of the MOF. On the other hand, the negative peak is attributed to reductive dechlorination, or the intercalation of OMIM + in the MOF's voids.