Fig. 1 Representation of possible modes of charge transport in MOFs: (a) hopping charge transport, (b) through-space charge transport, and (c) through-bond charge transport[22]

Fig. 2 Control strategy of conductive MOFs in supercapacitors From microstructure, active site, surface interface and nanocomposite of conductive MOFs to energy storage applications

Fig. 3 (a) Crystal structure of Cu-CAT viewed along the c-axis; (b) Structure of the solid-state supercapacitor (left) and photograph of a red light-emitting-diode powered by the three supercapacitors connected in series (right); (c, d) SEM and photographic images (inset in (d)) of the Cu-CAT NWAs growing on carbon fiber paper; Performance comparison of (e)Cu-CAT NWAs and (f) MOF materials, and carbon materials based symmetric solid-state supercapacitors[29]

Fig. 4 (a) Molecular structure of Ni3(HITP)2; (b) Relative size of pores, electrolyte Et4N+ and BF4- ions, and acetonitrile solvent molecules showing in a space-filling diagram of idealized Ni3(HITP)2; (c) Comparison of areal capacitance for various materials normalized relative to their BET surface areas[30]

Fig. 5 Structure of MOF‐867 and performance of the nMOF SCs[44]

Fig. 6 Cycle performance for all Ni-DMOFs-based asymmetric supercapacitor at a current density of 10 A?g-1[41]

Fig. 7 Schematic diagram for coin-type supercapacitors[44]

Fig. 8 (a) Illustration of the synthesis methodology for polyaniline-ZIF-67 on carbon cloth; (b) Areal capacitances of the PANI-ZIF-67-CC and other electrode materials; (c-f) Schematic illustrations of PANI-ZIF-67-CC flexible solid-state SC device; (g) Photograph of a red light-emitting-diode (LED) powered by the three SCs connected in series[52]