Synthesis of Ag or Pt Nanoparticles by Hydrolysis of EitherAg2Naor PtNa

[摘要] Ag and Pt nanoparticles have successfully been synthesized by hydrolysis of eitherAg2Naor PtNa at room temperature. The oxidation of sodium in the Pt-Na pellets was much faster than that in the Ag-Na pellets since Pt is a catalyst forH2Oformation reaction from hydrogen and oxygen at room temperature. The hydrolysis byproduct, NaOH, has a high solubility and easily is removed. This method offers a simple method of preparing transition metal nanoparticles. The Ag and Pt nanoparticles prepared by this method were crystalline in nature, and spherical in shape with a mean size of around 10 nm.

[学科分类] 材料工程