Preparation method of transition metal doped nickel-based metal organic framework three-dimensional electrode material, product and application thereof
A transition metal, organic framework technology, applied in the field of preparation of transition metal-doped nickel-based metal-organic framework three-dimensional electrode materials, can solve the problems of destroying the original structure of MOF materials, agglomeration of metal nodes, loss of organic ligands, etc. The effect of catalytic reaction resistance, reducing overpotential, increasing conductivity
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[0036]Example 1
[0037](1) Preparation of three-dimensional conductive graphite substrate
[0038]The graphite sheet was ultrasonically cleaned with acetone, ethanol and ultrapure water for 20 minutes, and dried in an oven at 60°C for 4 hours. Then the graphite sheet was used as the working electrode, the platinum sheet was used as the counter electrode, and concentrated sulfuric acid was used as the electrolyte at a DC voltage of 5V. Next, perform electrochemical oxidative peeling of the graphite sheet for 1 min. After the peeling, wash with a large amount of ultrapure water and dry in an oven at 60° C. for 4 hours to obtain a three-dimensional graphite substrate;
[0039](2) Preparation of cerium-doped nickel-based metal organic frame three-dimensional electrode material
[0040]First weigh 16mL DMF, 1mL ethanol, and 1mL ultrapure water as a mixed solvent, then weigh 119mg nickel chloride hexahydrate, 6.5mg cerium nitrate hexahydrate and 116mg terephthalic acid, add them to the mixed solvent...
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[0052]Example 2
[0053]According to the preparation method in Example 1, the difference is that: in step (2), the amount of cerium nitrate hexahydrate is 2 mg to prepare a cerium-doped nickel-based metal organic frame three-dimensional electrode material.
[0054]The prepared cerium-doped nickel-based metal organic frame three-dimensional electrode material exhibited an overpotential of 293 mV in an alkaline electrolyte.
Example Embodiment
[0055]Example 3
[0056]According to the preparation method in Example 1, the difference is that: in step (2), the amount of hydrated cerium nitrate is 13 mg to prepare a cerium-doped nickel-based metal organic frame three-dimensional electrode material.
[0057]The prepared cerium-doped nickel-based metal organic framework three-dimensional electrode material exhibited an overpotential of 280 mV in an alkaline electrolyte.
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