One-step green route to narrowly dispersed copper nanocrystals |
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Authors: | Chunwei Wu Brian P Mosher Taofang Zeng |
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Institution: | (1) Mechanical & Aerospace Engineering, North Carolina State University, 3180A Boughton Hall, 7910, Raleigh, 27695, NC, USA |
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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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Keywords: | copper nanocrystals green chemistry ascorbic acid colloids environmentally |
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