Production method of graphite/iron carbide/ iron nanocomposite
A composite material and iron carbide technology, which is applied in the field of magnetic nano powder preparation, can solve the problems that are not suitable for large-scale industrial production, difficult to separate catalyst materials, and low product purity, and achieve high saturation magnetization, good dispersion, and reaction highly active effect
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Embodiment 1
[0018] Weigh 0.025 moles of ferric nitrate, 0.075 moles of glycine, and 0.05 moles of carbon source, dissolve various raw materials in distilled water to prepare a solution, and place the solution on a temperature-controllable electric furnace for heating. After the solution undergoes a series of reactions such as volatilization, concentration, and decomposition, a precursor powder containing iron and carbon is obtained, and the precursor powder is reacted at 800 ° C under a nitrogen atmosphere for 2 hours to obtain a graphite / iron carbide nanocomposite powder .
Embodiment 2
[0020] Weigh 0.025 moles of ferric nitrate, 0.075 moles of glycine, and 0.05 moles of carbon source, dissolve various raw materials in distilled water to prepare a solution, and place the solution on a temperature-controllable electric furnace for heating. After the solution undergoes a series of reactions such as volatilization, concentration, and decomposition, a precursor powder containing iron and carbon is obtained, and the precursor powder is reacted at 900 ° C under an argon atmosphere for 2 hours to obtain a graphite / iron nanocomposite powder .
Embodiment 3
[0022] Weigh 0.025 moles of ferric nitrate, 0.075 moles of glycine, and 0.075 moles of carbon source, dissolve various raw materials in distilled water to prepare a solution, and place the solution on a temperature-controllable electric furnace for heating. After the solution undergoes a series of reactions such as volatilization, concentration, and decomposition, the precursor powder containing iron and carbon is obtained, and the precursor powder is reacted at 1000 ° C for 0.5 hours under the conditions of argon atmosphere to obtain graphite / iron carbide / iron nano Composite powder.
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