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以CoSO3和(NH4)2C2O4·H2O为原料,通过65℃的温热沉淀反应和温热陈化过程,控制合成了水合草酸钴纳米棒。以水合草酸钴纳米棒为前驱体,在Ar气氛中于360℃下,通过热分解过程制备纳米金属钴纤维。实验样品采用AAS,OEA,FT-IR,TGA-DTG,XRD和SEM测试技术进行分析。测试结果表明:温和液相沉淀法制备的样品为水合草酸钴,其化学式可写为CoC2O4·3H2O。制备的草酸钴纳米棒直径为0.2~0.4μm,长度为1.0~5.0μm;热分解制备的金属钴纳米纤维的直径约0.2μm,长度为1.0~5.0μm。
CoSO3 and (NH4) 2C2O4 · H2O as raw materials, through the warm precipitation reaction at 65 ℃ and the thermal aging process, the synthesis of hydrated cobalt oxalate nanorods. The cobalt oxalate nanorods were prepared by thermal decomposition at 360 ℃ in Ar atmosphere with cobalt oxalate as the precursor. The experimental samples were analyzed by AAS, OEA, FT-IR, TGA-DTG, XRD and SEM. The test results show that the sample prepared by mild liquid phase precipitation is cobalt oxalate hydrate, whose chemical formula can be written as CoC2O4 · 3H2O. The prepared cobalt oxalate nanorods have a diameter of 0.2-0.4 μm and a length of 1.0-5.0 μm; the metal cobalt nanofibers prepared by thermal decomposition have a diameter of about 0.2 μm and a length of 1.0-5.0 μm.