Preparation and electrochemical properties of self-supported Ni-MOF/NF electrodes
To improve the conductivity and capacitive performance of metal-organic frameworks(MOFs),nickel-based metal-organic frameworks(Ni-MOF)have been in-situ grown on the surface of nickel foam(NF)substrate by cathodic electrodeposi-tion to construct self-supported Ni-MOF/NF composite electrodes.The morphology and structure of composite electrodes are characterized by SEM,XRD and FT-IR.The test results show that Ni-MOF has a flower-like structure composed of rod-like crys-tals,which is randomly distributed on the NF surface.When the deposition time is 1200 s,the Ni-MOF flowers cover the entire NF surface.The Ni-MOF/NF electrode obtained at the deposition time of 900 s has better electrochemical performances with a high specific capacitance of 5415 mF/cm2 at 1 mA/cm2,indicating its potential application in supercapacitors.
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维普
