Synthesis and Characterization of Monodispersed Copper Colloids in Polar Solvents.

Nanoscale Research Letters
Wei YuChen Zhang

Abstract

A chemical reduction method for preparing monodispersed pure-phase copper colloids in water and ethylene glycol has been reported. Owing to the reduction property of ethylene glycol, the reaction rate in ethylene glycol is higher than that in water. In addition, the amount of reducing agent can be reduced largely. Ascorbic acid plays roles as reducing agent and antioxidant of colloidal copper, due to its ability to scavenge free radicals and reactive oxygen molecules. Thermogravimetric results reveal that the as-prepared copper nanoparticles have good stability, and they begin to be oxidized at above 210 degrees C. Polyvinyl pyrrolidone works both as size controller and polymeric capping agents, because it hinders the nuclei from aggregation through the polar groups, which strongly absorb the copper particles on the surface with coordination bonds.

References

Apr 15, 2004·Journal of Colloid and Interface Science·Xinyu SongZhilei Yin
Jul 26, 2005·Journal of Colloid and Interface Science·Yuzuru ShimazakiMikio Konno
Dec 14, 2005·Langmuir : the ACS Journal of Surfaces and Colloids·Guangjun ChengA R Hight Walker
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Citations

Nov 2, 2013·ACS Applied Materials & Interfaces·Enrico Della GasperaBruce Dunn
Sep 13, 2013·Journal of the Royal Society, Interface·Samik DattaMatt J Keeling
Apr 9, 2013·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·S YallappaK Nagaraja
Mar 5, 2016·Chemical Reviews·Manoj B GawandeRajender S Varma
Jul 5, 2015·Journal of Hazardous Materials·Jennifer QuirósRoberto Rosal
Aug 20, 2015·ACS Applied Materials & Interfaces·Yuki HokitaHideya Kawasaki
May 23, 2015·Faraday Discussions·Lehao LiuNicholas A Kotov
Jun 2, 2017·ACS Applied Materials & Interfaces·Shuai ChenLidong Li
Jul 25, 2013·Molecular & Cellular Proteomics : MCP·Sarah TribouletThierry Rabilloud
Dec 18, 2012·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Muhammad Sani UsmanWan Md Zin Wan Yunus
Jun 30, 2011·Nanoscale Research Letters·Huaqing XieLifei Chen
May 26, 2017·Journal of Materials Science. Materials in Medicine·T DayakarSi-Hyun Park

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Methods Mentioned

BETA
X-ray
transmission electron microscopy

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