采用改进的液相还原法制备了纳米钴微晶,并对产物进行了XRD、TEM、SAED表征.结果表明,纳米钴微晶呈雪花状、结晶度高;运用网络矢量分析仪(VNA)与振动样品磁强计(VSM)对其吸波性能与磁性能进行了测试,结果表明其吸波性能与磁性能较好,在2290MHz处,有最大回损值为-12.86db;矫顽力高达250.59Oe.采用DSC分析研究了纳米钴微晶对高氯酸铵(AP)热分解的催化性能,结果显示在钴微晶的存在下,AP的高低温放热峰相连且合并成一个高而大的放热峰,峰温最大幅度降低了102.6℃,表观分解热显著增大,表明纳米钴微晶对AP热分解有着极强的催化活性.
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