Synthesis of copper nanoparticles catalyzed by pre-formed silver nanoparticles |
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Authors: | Michael Grouchko Alexander Kamyshny Keren Ben-Ami Shlomo Magdassi |
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Institution: | (1) Casali Institute of Applied Chemistry, Institute of Chemistry, Center for Nano Science, The Hebrew University of Jerusalem, Jerusalem, 91904, Israel |
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Abstract: | Synthesis of well dispersed copper nanoparticles was achieved by reduction of copper nitrate in aqueous solution using hydrazine
monohydrate as a reducer in the presence of preformed silver nanoparticles as catalysts. It has been demonstrated that addition
of silver nanoparticles to the reaction mixture leads to formation of aqueous dispersion of copper nanoparticles and also
results in a drastic reduction in reaction time compared to procedures reported in the literature. The absorption spectrum
of the dispersions, HR-TEM and STEM images and XRD pattern indicate the formation of copper nanoparticles with particle size
in the range of 5–50 nm. |
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Keywords: | Silver Copper Nanoparticles Catalysis Colloids |
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