Abstract Size- and shape-controlled phase pure Ni nanoparticles were synthesized using nickel acetate as precursor, 1,2-propanediol as solvent and reducing agent, sodium hydroxide as pH adjusting agents, and surfactants as modifiers. The as-prepared Ni nanoparticles were characterized by transmission electron micrographs (TEM), selected area electron diffraction (SAED), powder X-ray diffraction (XRD) and Fourier transform infrared (FTIR). The presence of modifiers is crucial for the synthesis of size- and shape-controlled phase pure Ni nanoparticles. The modification effect of single modifiers such as PEGs and soidum dodeccanesulphonate, and their composites were investigated and analyzed. Among single modifiers, the presence of PEG-200 is beneficial to fabricating irregular snowflake-like crystals as well as the presence of PEG-600 does, PEG-2000 beneficial to synthesizing dodecahedra crystals, PEG-6000 beneficial to synthesizing triangular crystals, SDS beneficial to fabricating dodecahedra crystals and irregular snowflake-like crystals with smaller average particle size. Among the composite modifiers, the presence of SDS and PEG-600 is beneficial to fabricating irregular snowflake-like crystals with bigger average particle size of 140nm, as well as the presence of SDS and PEG-6000 does. The effects of the eletrostatic attraction and steric barrier of the modifiers play an important role in the synthesis of Ni nanoparticles certified by Fourier transform infrared (FTIR).
[1] Dragieva I D, Stoynov Z B, Klabunde K J. Scr Mater, 2001; 44: 2187 [2] Edelstein A S, Murday J S, Rath B B. Prog Mater Sci, 1997; 42: 5 [3] Takimoto M, Nakamura Y, Kimura K, Mori M. J Am Chem Soc, 2004; 126: 5956 [4] Niu M Q, Wu J D. Fine Chem, 2003; 20: 715 (牛明勤,吴介达．精细化工, 2003;20:715) [5] Gao J Z, Guan F, Zhao Y C, Yang W, Ma Y, Lu X, Hou J, Kang J. Mater Chem Phys, 2001; 71: 215 [6] Sun X C, Gutierrez A, Yacaman M J, Dong X, Jin S. Mater Sci Eng, 2000; A286: 157 [7] Palchik O, Avivi S, Pinkert D, Gedanken A. Nano Struct Mater, 1999; 11: 415 [8] Kapoor S, Salunke H G, Tripathi A K, Kulshreshtha S K, Mittal J P. Mater Res Bull, 2000; 35: 143 [9] Zheng H G, Liang J H, Zeng J H, Qian Y T. Mater Res Bull, 2001; 36: 947 [10] Gubin S P. Colloid Surf A, 2002; 202: 155 [11] Li Z W, Tao X J, Zhou J F, Zhang Z J. J Henan Univ (Nat Sci), 2000; 30: 39 (李志伟,陶小军,周静芳,张治军．河南大学学报(自然科学 版),2000;30:39) [12] Xin X Q, Wu Z S, Zhou J F, Zhang Z J, Dang H X. Chin J Inorg Chem, 2002; 18: 193 (阎玺庆,吴志申,周静芳,张治军,党鸿辛．无机化学学报, 2002;18:193) [13] Mishra R S, Valiev R Z, Mcfadden S X, Islamgaliev R K, Mukherjee A K. Scr Mater, 1999; 40: 1151 [14] Hou Y, Kondoh H, Ohta T, Gao S. Appl Surf Sci, 2005; 241: 218 [15] Zhang S M, Zhang C L, Wu Z S, Zhang Z J, Dang H X, Liu W M, Xue Q J. Acta Chim Sin, 2004; 62: 1443 (张晟卯,张春丽,吴志申,张治军,党鸿辛,刘维民,薛群基． 化学学报,2004;62:1443) [16] Bradley J S, Tesche B, Busser W, Maase M, Reetz M T. J Am Chem Sic, 2000; 122: 4631 [17] Puntes V F, Krishnan K M, Alivisatos A P. Science, 2002; 291: 2115 [18] Lin R H, Fang L, Xi Y X, Shao Y X. Acta Chim Sin, 2004; 62: 2365 (林荣会,方亮,郗英欣,邵艳霞．化学学报,2004;62:2365) [19] Li L. Surfactants and Nanotechnology. Beijing: Chemistry Industry Press, 2004: 39 (李 玲．表面活性剂与纳米技术．北京:化学工业出版社, 2004:39)
