Preparation method and application of carbon-based metal organic frame (MOF) compound derivative material
An organic framework and base metal technology, which is applied in the field of large-scale preparation of carbon-based metal-organic framework compound derived materials, can solve the problems of high cost and complex production process, and achieves short time consumption, low energy consumption and good electrical conductivity. Effect
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Embodiment 1
[0035] Dissolve 294mg of polyacrylonitrile (PAN) into 5mL of DMF (N,N-dimethylformamide) reagent, stir and heat in a water bath at 60°C for 1-2h to obtain a colorless viscous liquid. After the PAN is fully dissolved in the DMF reagent, a 6% PAN solution can be obtained. Then, through electrospinning technology, control the parameter power supply voltage of 5 ~ 20kV, and the injection rate of the propeller is 4 ~ 10μL / min, and spin to obtain a uniform PAN film substrate; figure 1 Shown is a PAN film prepared by electrospinning.
Embodiment 2
[0037] The precursor solution of the metal framework compound ZIF-67 was prepared, and 5 mmol of cobalt nitrate hexahydrate and 20 mmol of 2-methylimidazole were dissolved in 30 mL of anhydrous methanol, fully stirred, and sonicated. First, fully soak the PAN film substrate obtained in Example 1 in the cobalt nitrate hexahydrate solution, then quickly pour the 2-methylimidazole solution into the cobalt nitrate hexahydrate solution, mix well, and let it stand at room temperature for 1-2 hours. 4h. The resulting product was washed with absolute ethanol. After washing, the material was dried at room temperature, and the ZIF-67 modified PAN film (ZIF-67@PAN) material was collected.
Embodiment 3
[0039] Cut 15mg of ZIF-67@PAN material and 100mg of melamine and place them together in a crucible (ZIF-67@PAN material and melamine should not be in direct contact with each other as much as possible). 2 Calcination was carried out in a vacuum tube furnace under the atmosphere, the heating rate was 2°C / min, the speed was raised to 700°C, and the calcination time was 0.5h. After the thermal reduction process, the carbon-based metal organic framework compound derivative material (CNT-Co @CF). Figure 2-5 Shown is the SEM image of the CNT-Co@CF material, indicating that the controllable multi-morphology self-assembly of the MOF material on the substrate under time regulation in Example 2 (as the modification time of ZIF-67 gradually increases, CNT-Co@CF The material presents different shapes such as fully covered, bamboo-shaped, small spherical, etc.). Image 6 Shown is the TEM image of the CNT-Co@CF material, as shown in the figure, dense carbon nanotubes grown in situ catalyti...
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