(1. 江苏大学 化学化工学院，镇江 212013；2. 江苏大学 材料科学与工程学院，镇江 212013)
摘 要: 采用液相化学还原法，在1，2-丙二醇体系中，分别使用吐温-80(Tween-80)、聚乙二醇-6000(PEG-6000)和十二烷基硫酸钠(SDS)与聚乙二醇-6000(PEG-6000)的混合物作为修饰剂，利用1，2-丙二醇还原相同母体醋酸镍，制备形貌分别为海绵体、纤维状、雪花状的多晶纳米镍；在水体系中，使用SDS为修饰剂，利用水合肼还原相同母体醋酸镍，制备球形多晶纳米镍。通过X射线衍射(XRD)、透射电子显微镜(TEM)、选区电子衍射(SAED)对纳米镍进行表征。利用傅立叶红外(FTIR)分析初步解释不同形貌纳米镍的形成机理。
关键字: 纳米镍；液相还原法；吐温-80；聚乙二醇-6000；十二烷基硫酸钠
（1. School of Chemistry and Chemical Engineering, Jiangsu University,Zhenjiang 212013, China;2. School of Material Science and Engineering, Jiangsu University,Zhenjiang 212013, China）
Abstract: Ni nanocrystals with different morphologies, such as spongy, fibrillar, and snowflake-like, were prepared by using nickel acetate as precursor, 1, 2-propanediol as solvent and reductant, with different surfactants as modifiers. These modifiers are polyoxyethylene sorbitan monooil 80 (Tween-80), polyethylene glycol 6000 (PEG-6000) and mixture of sodium dodecyl sulfate (SDS)+PEG-6000, respectively. The spherical Ni nanocrystals were synthesized in nickel acetate solution by using hydrazine hydrate as reductant, with surfactant SDS as modifier. The as-prepared Ni nanoparticles were characterized by transmission electron microscope (TEM), selected area electron diffraction (SAED), powder X-ray diffractometer (XRD) and Fourier transform infrared (FTIR) spectroscopy. The fabrication mechanisms of Ni nanocrystals with different morphologies were investigated.
Key words: nickel nanocrystals; liquor-phase reduction synthesis; Tween-80; polyethylene glycol 6000; sodium dodecyl sulfate
