通过化学共沉淀法制备了CoFe2O4纳米颗粒,并在不同的温度下进行热处理,研究了不同热处理工艺对CoFe2O4纳米颗粒的缺陷与磁性能的影响.X射线衍射谱(XRD)显示所有样品具有单一的尖晶石铁氧体结构,振动样品磁强计(VSM)测试显示了所有样品典型的铁磁性特征.红外光谱(FT-IR)显示650℃及以下温度热处理的样品存在较多的金属氢氧基缺陷,而在更高热处理温度时缺陷即可去除.化学共沉淀法制备的CoFe2O4纳米颗粒在不同的热处理温度时,晶粒尺寸与金属氢氧基缺陷共同导致了磁性能的变化.
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