以乙酰丙酮铗作为铁源,三甘醇作为溶剂,采用热分解法制备了原始以及酸化后的多壁碳纳米管负载铁氧体纳米粒子的复合材料.并用扫描电子显微镜(TEM)、X射线衍射(XRD)、穆斯堡尔谱等分析了材料的微观结构和特性.结果表明,铁氧体纳米粒子均匀地修饰在碳纳米管表面,没有明显团聚现象产生,酸化后的碳纳米管表面生成的纳米粒子中包含了Fe3O与Fe2O3两种粒子.碳纳米管经酸化后,其表面生成了许多缺陷,缺陷处的活泼电子更容易与生成的Fe3O4纳米粒子的外层电子之间进行快速的电子交换,使得Fe3O4纳米粒子中的FeⅡ被部分氧化,使生成的铁氧体纳米粒子更多地表现为Fe2O3的特性.
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