Abstract
We report a total “green” chemical method in aqueous solution for synthesizing stable narrowly distributed copper nanoparticles with average diameter less than 5 nm in the presence of Polyvinylpyrrolidone (PVP) as a stabilizer and without any inert gas protection. In our synthesis route, ascorbic acid, natural vitamin C (VC), an excellent oxygen scavenger, acts as both reducing agent and antioxidant, to reduce the metallic ion precursor, and to effectively prevent the common oxidation process of the newborn pure copper nanoclusters.
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This project is funded by NASA/Space Grant and NSF (CTS-0500402).
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Wu, C., Mosher, B.P. & Zeng, T. One-step green route to narrowly dispersed copper nanocrystals. J Nanopart Res 8, 965–969 (2006). https://doi.org/10.1007/s11051-005-9065-2
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DOI: https://doi.org/10.1007/s11051-005-9065-2