Impact of post annealing treatment on the design of ni-mof nanostructures for enhanced supercapacitor performance

Electrode materials based on organometallic skeleton materials have attracted attention in energy storage applications, because of their high conductivity and stability. A series of nickel-based metal-organic framework derived nanostructures were designed by hydrothermal method combined with post annealing treatment in the temperature. The morphological and electrochemical performances of the synthesized nickel-based MOF derived nanostructures were investigated as a function of post annealing temperature. The successful formation and purity of the synthesized nickel-based MOF derived nanostructures under controlled post annealing process. The formation of different morphologies of nickel-based MOF derived nanostructures owing to the different post annealing temperatures. Nickel-based MOF derived nanostructures prepared at post annealing temperature of 300 °C exhibits improved specific capacitance value of 3921 F/g at current density of 2 A/g. All these results provide an effective way of synthesizing MOF based electrode materials with improved performance for energy storage applications, which are valuable for our energy demands.