Preparation of Copper Nanoparticles by ChemicalReduction Method at Room-Temperature

• Main Authors: CHAO-JEN HUANG, 黃昭仁
• Other Authors: none
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/29986937119969173348

碩士 === 中原大學 === 化學工程研究所 === 96 === A number of different ways have been developed to prepare metal nano-particles. Some of these methods include photoreduction and reduction using various reducing agents in association with protective polymers or surfactants. However, it has been argued that the stabilizer or protective polymer used for stabilization of metal nanoparticles covers its surface and hence can reduce the catalytic properties of the metal particles. In this paper, we report a novel solution phase reduction method for preparing copper nanoparticles, which does not require steric stabilizing agents. Copper metal nanoparticles was formed with a novel reducing agent, and were characterized using x-ray powder diffraction, scanning electron microscopy, transmission electron microscopy, XPS and EDS analyses. The average diameter of copper nanoparticles was measured to be < 20 nm. The crystal structure of copper nanoparticles was determined to be a face centered cubic single crystal structure, which is the same as the bulk copper.