化学还原法制备纳米铜

化学学报 ›› 2004, Vol. 62 ›› Issue (23): 2365-2368. 上一篇

研究简报

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. 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-Hui^1,3, FANG Liang¹, XI Ying-Xin², SHAO Yan-Xia²

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

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摘要/Abstract

以硼氢化钾为还原剂、硫酸铜为氧化剂并添加PVP等辅助材料,采用还原法成功地制备了改性酚醛树脂用纳米铜.通过XRD和TEM对纳米铜进行了表征.结果显示,纳米铜呈球形,粒径为10～50 nm.探讨了BH₄^-与Cu²⁺的反应历程,认为该反应是分三步进行的:第一步是铜的还原反应;第二步是生成的H⁺分别与BH₄^-和OH^-的反应,这是一对竞争反应;第三步是硼的水解反应.在反应过程中,硼氢化钾与硫酸铜消耗的摩尔比为2:1.

关键词: 还原法, 纳米铜, 保护剂, 反应历程

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

引用此文

林荣会, 方亮, 郗英欣, 邵艳霞. 化学还原法制备纳米铜[J]. 化学学报, 2004, 62(23): 2365-2368.

LIN Rong-Hui, FANG Liang, XI Ying-Xin, SHAO Yan-Xia. Preparation of Nano-particle Copper by Chemical Reduction[J]. Acta Chimica Sinica, 2004, 62(23): 2365-2368.

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化学还原法制备纳米铜

Preparation of Nano-particle Copper by Chemical Reduction

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