液相化的学还原法制备不同形貌的多晶纳米镍.pdf

17 10 2007 10 Vol.17 No.10 The Chinese Journal of Nonferrous Metals Oct. 2007 1004-0609(2007)10-1700-05 1 2 1 1 , , , (1. 212013 2. 212013) 12--80(Tween-80)-6000(PEG-6000) (SDS)-6000(PEG-6000)12- SDS X (XRD)(TEM)(SAED) (FTIR) -80 -6000 TB 383; O 614.121 A Preparation of Ni nanocrystals with different morphologies by liquor-phase reduction ZHANG Xi-feng1 2 1 1 , CHENG Xiao-nong , YIN Heng-bo , WU Yin-yin (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 wor