thanks to open porous designs that allow for the insertion and deinsertion of ions. In general, graphitized carbon frameworks and lower nitrogen concentrations are always present in ZIF-67derived carbon, but high nitrogen contents and amorphous carbon can be found in ZIF-8-derived carbon. Given that ZIF-8 and ZIF-67 have similar coordination structures and lattice characteristics, a carbonising bimetallic ZIF made of ZIF-67 and ZIF-8 might incorporate the advantages of porous carbon generated from MOFs. Bimetallic MOFs will create a core-shell structure when ZIF-8 is used as a seed for the growth of ZIF-67 shells . After carbonization, the resulting carbon is composed of a highly graphitic shell and a core with a large surface area (Figures. Overall, the majority of the nanoporous carbon produced using MOF as sacrificial templates has a very low capacitance. However, it should be emphasised that materials formed from MOFs that are carbon/metal oxides, metal oxides, or other metal compounds can be produced using a variety of multi-step techniques. The electrical conductivity, surface area, and cycle life of metal oxide nanostructures produced via MOF are frequently low. In comparison to pure metal oxides produced from MOFs, carbon/metal oxides exhibit better performance . By reaching 500 ºC through the use of an iron-based MOF (Fe-MIL-88B-NH2) crystal in an N2 gas environment, for instance, a porous Fe3O4/carbon composite can be created, and the carbon layer produced from Fe-MOFs is amorphous . Different LDH hybrids would develop when Co and Ni addition levels were controlled. And to improve the electrochemical performance, the authors used the CF@Ni2Co1Zn-LDH. Notably, via selective vulcanization, Co9S8 quantum dots (Co9S8 QDs) can be incorporated into the CF@Ni2Co1Zn-LDH interlayer to create CF@NiCoZn-LDH/Co9S8-QDs (Figure .4E and 6.4F). The capacitive performance is effectively improved by the created Co9S8 QDs with Non-aqueous electrolytes produce steady operating potential values over a large range . Low specific capacitance is nonetheless produced by low ionic conductivity and slow mass diffusion, along with problems like toxicity and flame ability. There are also reports on solid state electrolytes . Ion concentration, interface contact, ion size and type, solvent, cell voltage window and ions interaction are all factors that affect the overall electrolyte performance, including cycle stability, power density, energy density, and pseudo capacitance . Conductivity compared to energy densities, long life, power densities, and performance are design factors for electrolyte synthesis . The correct salt concentration and solvent mixture can increase efficiency . Most often, aqueous KOH is employed in literature, with concentrations ranging from 1-6 M.