Synthesis,Structure Characterization and Properties of Nickel(Ⅱ)MOF-Based Electrocatalyst Based on Mixed Ligands
Under solvothermal conditions,using Ni(NO3)2·6H2O as the metal source,pentamethy lisophthalic acid(H2MIP)ligand and 1,3-bis(2-methyl-lH-imidazol-l-yl)propane(BMIP)as mixed ligands,a new Ni(Ⅱ)organic framework material,)[Ni4(MIP)4(BMIP)3]·DMF}n(SNUT-36),was constructed.X-ray single crystal diffraction analysis shows that SNUT-36 presents a binodal(4,6)connected double-interpenetrated three-dimensional skeleton structure with topological analysis data of(32·45·5·67)(34·47·5·63).The obtained complex was further characterized by powder X-ray diffraction,infrared spectroscopy,thermogravimetric analysis and other means.In addition,the electrochemical test results show that SNUT-36 achieve an overpotential of 430 mV at 20 mA·cm-2,indicating its good electrocatalytic performance.The Tafel slope of 89 mV·dec-1 also confirmed its good effect on improving the oxygen evolution reaction rate.
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