Preparation and Electrochemical Properties of Lanthanum Neodymium Bimetallic Organic Frame Compounds
Based on the characteristics of rare earth,combining lanthanum and neodymium with terephthalic acid ligands,it is possible to obtain organic coordination compounds with special topological structures and electro-chemical properties.Bimetallic organic framework compounds(La/ND-MOFs)were prepared by solvothermal method using lanthanum(La)and neodymium(Nd)as metal sources and terephthalic acid as organic ligands.The structure was characterized by SEM,EDS,FT-IR,XRD and XPS.The composite electrode La/Nd-MOFs was prepared with acetylene black and PVDF and loaded on nickel foam.The electrochemical properties of La/Nd-MOFs were determined by CV,GCD and EIS methods.The results show that at 1A/g,the specific capacitance of La/Nd-MOFs composite modified electrode reaches 408 F/g,and after 5000 cycles of charge and discharge at 8 A/g,the capacitance retention rate remains at 94.4％.
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