Synthesis and characterization of highly stable dispersions of copper nanoparticles by a novel one-pot method

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• 作者：Guangbin Yang ^{yang0378@henu.edu.cn} ; Zhanming Zhang ; Shengmao Zhang ; Laigui Yu ; Pingyu Zhang ; ^{pingyu@henu.edu.cn}
• 关键词：A. Metals ; A. Nanostructures ; B. Chemical synthesis
• 刊名：Materials Research Bulletin
• 出版年：2013
• 出版时间：April, 2013
• 年：2013
• 卷：48
• 期：4
• 页码：1716-1719
• 全文大小：539 K

文摘

Highly stable dispersions of copper nanoparticles with an average particle size of about 2 nm were synthesized via a simple and cost-effective one-pot method with CS₂ as a reactant and a solvent as well for synthesizing surface-capping agent and Cu nanoparticles. As-prepared copper nanoparticles were characterized by X-ray powder diffraction, X-ray photoelectron spectroscopy, transmission electron microscopy, and Fourier transform infrared spectrometry. It has been found that surface-capped copper nanoparticles with a narrow size distribution can be readily fabricated with the established method. As-obtained spherical surface-capped Cu nanoparticles can form stable dispersions which do not show any sign of sediment even after storage at ambient conditions for 6 months, showing promising potential as novel lubricant additive.