93% (5000 cycles) Zn-MOF 1.0 M H2SO4 203 F g -1 (100 mA g -1 ) ZnMoO4 nanosheets 3 M KOH 1212 F g -1 (1 A g -1 ) 94% (5000 cycles) Mn-MOF 2 M KOH 567.5 mA h g -1 (1 A g -1 ) Al-MOF 1 M KOH 280 F g -1 (0.5 A g -1 ) 50% (5000 cycles) zirconium-based MOF 6 M KOH 694 F g -1 (0.5 A g -1 ) CeO2/C/MoS2 2 M KOH 1325.7 F g -1 (1 A g -1 ) 93% after 1000 cycles Fe3O4 nano aggregates 3 M KOH 868.7 C g -1 (2 A g -1 ) 88.8% (3000 cycles) α-Fe2O3 nano-octahedron 1 M LiOH 250.2 mA h g -1 (10 A g -1 ) 867% (6000 cycles) An excellent contender for energy storage material is nanoporous material. According to Na Xin et al., the Co/ Zn-S@ rGO bimetallic porous structure exhibits a power density of 800 W kg -1 and an energy density of 91.8 W h kg -1 . The material was tested in a variety of ways, and the highest specific capacitance measured was 1640 F g -1 . It's important to note that during testing at current density 10 A g -1 , activation of the electrode material led to capacitance starting to grow after 500 cycles and sustaining 90% of the initial capacitance after 8000 cycles. . The electrochemical characteristics of a newly formed two-dimensional cobalt organic framework were described by Shankhamala Ghosh et al. Solvothermal synthesis was used to create the electrode material in a solution of water, ethanol, and DMF. The material was tested using a standard electrolyte of acetonitrile and a three-electrode setup. At a current density of 1 A g 1 , the specific capacitance was 300 F g 1 . Even after 1000 complete cycles, the capacitance maintained 94% of its original value . For the SCs electrode, Richa Rajak et al. easily produced new hetero metallic Na/Co-based materials at room temperature using a slow diffusion technique.