研究了氢氧摩尔比例与二茂铁质量对制备碳包覆铁纳米颗粒的影响.通过氢气与氧气爆轰产生的高温高速,在自制爆轰管内分解二茂铁,合成了碳包覆铁纳米颗粒.经XRD分析与TEM表征发现,氢氧比例与二茂铁质量在制备碳包铁时相互影响,氢氧比例主要影响碳包铁的形貌大小及分散性,二茂铁质量对能否合成碳包铁纳米颗粒影响很大.当氢氧比例为2∶1,二茂铁质量在2.5～3.5 g时,能够合成碳包覆铁纳米颗粒,且呈球形或椭球形,具有明显的核壳结构.从颗粒大小均匀性,形貌结构及分散性考虑,氢氧比例2∶1,二茂铁质量3.5 g的反应条件是制备碳包铁的较佳方案.
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