catalytic decomposition n 2 o Preparation method of cobalt-based metal-organic framework-derived catalyst
An organic framework, catalytic decomposition technology, applied in organic compound/hydride/coordination complex catalysts, physical/chemical process catalysts, separation methods, etc., to achieve excellent activity, accelerated coordination rate, and excellent adsorption and desorption capabilities Effect
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Embodiment 1
[0032]Weigh 0.025mol of 2-methylimidazole and 0.025mol of triethylamine and dissolve them in 250ml of deionized water. Stir magnetically and sonicate for 20 minutes until the drug is completely dissolved. Slowly introduce 250mL dissolved with 0.01mol Co(NO 3 ) 2 ·6H 2 O solution, after standing at room temperature for 10 minutes, the solution was centrifuged at a high speed (5000r / min) and washed. The collected solid precipitate was dried in an oven at 110 °C for 6 h to obtain the precursor ZIF-67. The precursor was further heated to 650°C at a heating rate of 2°C / min in nitrogen, and then annealed after pyrolysis at 650°C for 3 hours to obtain the cobalt nanocomposite catalyst Co-650N supported on the porous carbon material.
Embodiment 2
[0034] The precursor ZIF-67 in Example 1 was heated to 550°C at a heating rate of 2°C / min in nitrogen, and then pyrolyzed for 3 hours. After annealing, the cobalt nanocomposite catalyst Co-550N supported on the porous carbon material was obtained. .
Embodiment 3
[0036] The precursor ZIF-67 in Example 1 was heated to 750°C at a heating rate of 2°C / min in nitrogen, and then pyrolyzed for 3 hours. After annealing, the cobalt nanocomposite catalyst Co-750N supported on the porous carbon material was obtained. .
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