Acta Chimica Sinica ›› 2004, Vol. 62 ›› Issue (23): 2365-2368. Previous Articles    

化学还原法制备纳米铜

林荣会1,3, 方亮1, 郗英欣2, 邵艳霞2   

  1. 1. 西安交通大学材料科学与工程学院, 西安, 710049;
    2. 西安交通大学应用化学系, 西安, 710049;
    3. 青岛理工大学机电工程学院, 青岛, 266033
  • 投稿日期:2003-11-25 修回日期:2004-07-09 发布日期:2014-02-17
  • 通讯作者: 方亮,E-mail:fangl@mail.xjtu.edu.cn E-mail:fangl@mail.xjtu.edu.cn

Preparation of Nano-particle Copper by Chemical Reduction

LIN Rong-Hui1,3, FANG Liang1, XI Ying-Xin2, SHAO Yan-Xia2   

  1. 1. School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an 710049;
    2. Department of Applied Chemistry, Xi'an Jiaotong University, Xi'an 710049;
    3. Shool of Mechanical and Electrical Engineering, Qingdao University of Technology, Qi
  • Received:2003-11-25 Revised:2004-07-09 Published:2014-02-17

Nano-particle copper used for modifying phenol formaldehyde resin has been successfully prepared by reduction with KBH4 as reductant and CuSO4 as oxidant, and by filling with PVP and other auxiliary reagents.XRD and TEM were conducted to characterize the structure of the prepared copper particles.The results showed that the size of nano-particle copper is distributed in the range of 10~50 nm in diameter and the nano powders are with spherical geometry.The reaction course of BH4- and Cu2+ was approached.It was deduced that the reaction course underwent in three steps: the first is the reduction of Cu, the second is the two competitive reactions of produced H+ with BH4- and OH-, respectively, and the third is the hydrolysis of boron.In this reaction, the molar ratio of KBH4 to CuSO4 consumed is 2:1.

Key words: reduction, nano-particle copper, protective agent, reaction course