Another sort of often used pseudocapacitive substance is metal oxides. Depositing metal oxides, on the target MOFs is a workable method for producing hybrid MOF supercapacitor electrodes. Zhang and colleagues developed a straightforward method to increase capacitance by in situ self-transformation based on the presumption that the performances can be improved by creating close connections between the MOFs and metal oxides . The researchers particularly selected the MOF-manganese hexacyanoferrate hydrate (Mn4Fe(CN)62.66715.84H2O) nanocubes as the target MOFs for generating manganese oxides. NH4F can be used to spread the resulting MnOx with nanoflowers structure on the surface of each Mn MOFs nanocube. When compared to pure Mn-MOFs, in a Na2SO4 electrolyte, the MOFs-MnOx nanocomposites exhibit a threefold increase in pseudocapacitance, with a specific capacitance of 1200 Fg -1 . Furthermore, the electrode built with MnOx-MOFs exhibits good capacitance retention at 94.7% after 10,000 cycles at 10Ag -1 . Designing conductive MOFs/MnO2 hybrid electrodes has also followed this integration method to increase capacitance and rate performance. For instance, a variety of Ni-HHTP/MnO2 nanoarrays with various lengths of Ni-HHTP nanorods were created by Duan et al. The charge storage mechanism for Ni-HHTP/MnO2 is co-controlled by diffusion and non-diffusion, according to CV analysis, which implies that both capacitor and battery behaviours are at play. With an increase in scan rating, the capacitive contribution rises. Ni-HHTP may significantly increase the conductivity by creating excellent nanorod arrays on the surface of MnO2 along [001], providing a good capacity of 368.2F g -1 at 1 Ag -1 in KOH for this hybrid electrode. Numerous redox active sites are provided by the ultrathin MnO2 nanosheets to generate high pseudo-capacitance.