采用溶液法和反胶束法合成Fe-B磁性纳米颗粒.通过XRD、TEM、ICP、VSM等手段,依次对Fe-B纳米颗粒的结构、形貌、成分、磁性能进行表征,并针对两种方法所得结果进行对比分析.采用溶液法制备的Fe-B纳米颗粒为晶体结构,颗粒尺寸在20~70 nm;反胶束法合成的Fe-B磁性纳米颗粒一般为非晶结构,颗粒尺寸细小(约5 nm).ICP颗粒成分分析结果表明,两种方法制备的Fe-B颗粒中B含量不同,溶液法制备的Fe-B颗粒中B含量约为17.8 at%;而反胶束法制备的Fe-B颗粒,其B含量较高,达34.9 at%.上述结构、颗粒尺寸和B含量的差异,导致了两种方法合成的Fe-B颗粒在磁性能方面的差别.
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