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采用沉淀法成功合成了纳米Fe_3O_4。使用X射线衍射(XRD)、X射线能量色散谱(EDS)和傅里叶红外(FTIR)对制得的样品结构进行了表征,通过透射电镜(TEM)可以发现其为球形颗粒,粒径为10 nm左右。将制得的纳米Fe_3O_4按2%、5%和10%的比例加入高氯酸铵(AP)中,通过对混合物进行差热分析(TG-DTA)发现,纳米Fe_3O_4可以明显促进AP的分解,其高温热分解温度从452℃提前到376、335℃和329℃,说明纳米Fe_3O_4对AP分解具有良好的催化性能,并对催化机理进行了简单讨论。
Nanometer Fe_3O_4 was successfully synthesized by precipitation method. The prepared samples were characterized by X-ray diffraction (XRD), X-ray energy dispersive spectroscopy (EDS) and Fourier transform infrared (FTIR). The TEM images showed that the particles were spherical particles About 10 nm. The obtained nano-Fe 3 O 4 was added into ammonium perchlorate (AP) at a ratio of 2%, 5% and 10%. Differential thermal analysis (TG-DTA) of the mixture showed that nano Fe 3 O 4 could obviously promote the decomposition of AP, The high-temperature thermal decomposition temperature advanced from 452 ℃ to 376,335 ℃ and 329 ℃, indicating that nano-Fe 3 O 4 has good catalytic performance for AP decomposition, and the catalytic mechanism is briefly discussed.