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在常压下采用简单的液相还原法制备了一维钴纳米材料,并对比了一维纳米材料在研磨前后的形貌变化。结果表明,外加磁场的存在更利于钴纳米晶体的取向生长,得到的一维钴纳米材料在被充分研磨后仍然保持有较大的长径比,并且具有更好的电磁吸波性能.
One-dimensional cobalt nanomaterials were prepared by simple liquid-phase reduction at atmospheric pressure. The morphologies of one-dimensional nanomaterials before and after milling were compared. The results show that the presence of an external magnetic field is more conducive to the orientation growth of cobalt nanocrystals. The obtained one-dimensional cobalt nanomaterials still have a large aspect ratio when they are sufficiently ground, and have better electromagnetic wave absorbing properties.