在不加表面活性剂的条件下,采用微波法制备碳纳米管负载组成可控的Cu1-xNix/MWCNTs (x=0.5,0.6,0.8)纳米复合材料,其结构和形貌通过XRD,TEM,SEM,EDX,FT-IR等技术进行表征,用VSM测试了材料的磁性能.结果表明:组成可控近似球形的Cu1-xNix合金纳米粒子均匀地负载在碳纳米管表面;Cu1-xNix合金为面心立方结构,当Ni含量增加时合金的晶格常数和粒径都逐渐减小;随着铜镍合金中Ni含量的增加,Cu1-xNix/MWCNTs复合材料的饱和磁化强度(Ms)增大,矫顽力(Hc)减小.另外,探讨了纳米复合材料的形成机理.
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