Bimetallic Metal-Organic Framework Electrode Material Based on Deep Eutectic Solvent, Preparation Method Thereof, and Application Thereof

A method for preparing a bimetallic metal-organic framework electrode material based on a eutectic solvent, comprising the following steps:

• mixing a eutectic solvent with water to obtain a mixed solvent;
• using the mixed solvent containing the eutectic solvent and water as a ligand solution, adding a soluble iron salt and a soluble nickel salt to the mixed solvent, dissolving by sonication, then adding activated carbon powder and a dispersant, mixing by sonication, and then adding a 2-methylimidazole ligand to obtain an iron-nickel bimetallic metal-organic framework activated carbon composite precursor solution;
• subjecting the iron-nickel bimetallic metal-organic framework activated carbon composite precursor solution to a water bath reaction, and performing post-treatment on the water bath reaction product to obtain an iron-nickel bimetallic metal-organic framework activated carbon composite material;
• using the iron-nickel bimetallic metal-organic framework activated carbon composite material as an electrode active material, mixing with a conductive agent and a binder to obtain an electrode slurry, coating the electrode slurry on an electrode plate, and drying to obtain an iron-nickel bimetallic metal-organic framework activated carbon composite electrode material.