Polyoxovanadate-based MOFs Microsphere Constructed from 3-DDiscrete Nano-sheets as Supercapacitor

WU Xue-Min, LIU Min-Min, GUO Hong-Xu*, YING Shao-Ming and CHEN Zhang-Xu

Chin. J. Struct. Chem. 2021, 40, 994-998  DOI: 10.14102/j.cnki.0254-5861.2011-3053

August 15, 2021

MOFs microsphere, polyoxovanadate, discrete nano-sheets, supercapacitor

ABSTRACT

A novel polyoxovanadate-based MOFs microsphere, [Ni(phen)V2O7]·H2O (phen = 1,10- phenanthroline), constructed from 3-D discrete nano-sheets has been prepared and characterized by XRD, FT-IR, SEM and TEM. Electrochemical properties as supercapacitor of the as-prepared sample, such as CV, EIS, GCD and the cycle life test have also been studied. The as-prepared MOF (V, Ni) showed a high specific capacitance of 178.09 F×g-1 at 1 A×g-1 as well as good cycling stability and coulombic efficiency. This work proved that the novel MOFs based on polyoxovanadate hybrid material may serve as a promising electrode material for high-performance supercapacitor.

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