ZIF-8@FeMOF derived Fe-N codoped carbon material, and preparation method and application of material
A ZIF-8, co-doping technology, applied in the field of doped materials, can solve the problem of incomplete preservation of morphology
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[0025] The present invention provides a preparation method of Fe-N co-doped carbon material derived from ZIF-8@FeMOF, comprising:
[0026] 1) In a solvent, FeMOF, zinc source, 2-methylimidazole, and surfactant are subjected to a contact reaction to prepare ZIF-8@FeMOF;
[0027] 2) Calcining ZIF-8@FeMOF to obtain Fe-N co-doped carbon materials derived from ZIF-8@FeMOF;
[0028] Among them, FeMOF is Fe 3+ A metal-organic framework material with a network structure composed of organic ligands; ZIF-8 is composed of Zn 2+ A zeolite imidazolate framework material obtained by reacting with 2-methylimidazole.
[0029] In step 1) of the present invention, the amount of each material can be selected in a wide range, but in order to further improve the yield and catalytic performance of the obtained Fe-N co-doped carbon material, preferably, in step 1) In the method, the dosage ratio of FeMOF, zinc source, 2-methylimidazole and surfactant is 10mg: 1-4mmol: 7-16mmol: 0.01-0.05mmol.
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preparation example 1
[0052] With 12mL of DMF as solvent, add 0.30g of ferric chloride hexahydrate (1.1mmol), 0.10g (0.55mmol) of 2-aminoterephthalic acid, stir at 25°C for 30min, then transfer to a reaction kettle for heat treatment at 150°C for 24h After cooling DMF, centrifuging, washing, and drying, FeMOF was obtained; denoted as A1.
preparation example 2
[0054] FeMOF was prepared according to the method of Preparation Example 1, which was denoted as A2; the difference was that ferric chloride hexahydrate was replaced by an equimolar amount of ferric nitrate, and the amount of 2-aminoterephthalic acid was 1 mmol.
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