Synthesis of Copper Nanoparticles in Ethylene Glycol by Chemical Reduction with Vanadium 2 SaltsReportar como inadecuado


Synthesis of Copper Nanoparticles in Ethylene Glycol by Chemical Reduction with Vanadium  2 Salts


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1

DCCI—Department of Chemistry and Industrial Chemistry, via Dodecaneso 31, Genova 16145, Italy

2

Nanophysics Department, Istituto Italiano di Tecnologia, via Morego 30, Genova 16163, Italy

3

Nanochemistry Department, Istituto Italiano di Tecnologia, via Morego 30, Genova 16163, Italy

4

DICCA—Department of Civil, Chemical and Environmental Engineering, Chemical Engineering Section, via Opera Pia 15, Genova 16145, Italy





*

Author to whom correspondence should be addressed.



Academic Editor: Erik Reimhult

Abstract Copper nanoparticles have been synthesized in ethylene glycol EG using copper sulphate as a precursor and vanadium sulfate as an atypical reductant being active at room temperature. We have described a technique for a relatively simple preparation of such a reagent, which has been electrolytically produced without using standard procedures requiring an inert atmosphere and a mercury cathode. Several stabilizing agents have been tested and cationic capping agents have been discarded owing to the formation of complex compounds with copper ions leading to insoluble phases contaminating the metallic nanoparticles. The elemental copper nanoparticles, stabilized with polyvinylpyrrolidone PVP and sodium dodecyl sulphate SDS, have been characterized for composition by energy dispersive X-ray spectroscopy EDS, and for size by dynamic light scattering DLS, and transmission electron microscopy TEM, giving a size distribution in the range of 40–50 nm for both stabilizing agents. From a methodological point of view, the process described here may represent an alternative to other wet-chemical techniques for metal nanoparticle synthesis in non-aqueous media based on conventional organic or inorganic reductants. View Full-Text

Keywords: copper; nanoparticles; bottom-up; ethylene glycol; reduction; surfactant copper; nanoparticles; bottom-up; ethylene glycol; reduction; surfactant





Autor: Andrea Pietro Reverberi 1,* , Marco Salerno 2, Simone Lauciello 3 and Bruno Fabiano 4

Fuente: http://mdpi.com/



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