Metal ion redox potential plays an important role in high-yield synthesis of monodisperse silver nanoparticles

作者：Lun Li, Feng Hu, Dongying Xu, Shuling Shen, Qiangbin Wang · 发表于：Chemical Communications · 年份：2012 · DOI：10.1039/c2cc18152e · 被引用次数：41 · 研究领域：Gold and Silver Nanoparticles Synthesis and Applications、Nanoparticles: synthesis and applications、Nanocluster Synthesis and Applications

A facile method is developed to prepare monodisperse silver nanoparticles in a much enhanced yield by adding a trace amount of Fe(3+) ions into the reaction of AgNO(3) with oleic acid and oleylamine. We propose that Fe(2+) ions speed up the nucleation and growth of silver nanoparticles due to the electron-transfer between Ag(+) and Fe(2+), in which Fe(2+) is from Fe(3+) reduced by oleylamine.