采用湿化学法在乙二醇体系中,利用以氯化钴为反应物、水合肼为还原剂制备获得的金属钴纳米粒子为前驱物,以低温前驱物硫化法在高分子PVP的修饰下成功的合成出了直径200～250nm,长度可达10μm的“线团状”硫化钴自组装纳米链。产物的场冷及零场冷曲线在T<350K时明显分离,表明样品呈现明显的磁性各向异性,推测由于其准一维形貌结构,使得样品临界势垒温度TB大于350K。 The wet chemical method was used in the ethylene glycol system to make the metal cobalt nanoparticles obtained by using cobalt chloride as the reactant and hydrazine hydrate as the reductant as precursors. The low temperature precursor vulcanization method was successfully modified by the polymer PVP The synthesis of the diameter of 200 ~ 250nm, the length of up to 10μm “thread group ” cobalt sulfide self-assembled nanochain. The field cold and zero field cold curves of the products were obviously separated at T <350K, indicating that the samples showed obvious magnetic anisotropy. It is speculated that the critical barrier temperature (TB) of the samples is more than 350K due to their quasi-one-dimensional topography.