Facile Fabrication of Ultrafine Copper Nanoparticles in Organic Solvent

Autor: Ran Liu, Uwe Siegert, H.P. Zhang, Wen-Bin Cai
Rok vydání: 2009
Předmět:
Zdroj: Nanoscale Research Letters
Nanoscale Research Letters, Vol 4, Iss 7, Pp 705-708 (2009)
ISSN: 1556-276X
DOI: 10.1007/s11671-009-9301-2
Popis: A facile chemical reduction method has been developed to fabricate ultrafine copper nanoparticles whose sizes can be controlled down to ca. 1 nm by using poly(N-vinylpyrrolidone) (PVP) as the stabilizer and sodium borohyrdride as the reducing agent in an alkaline ethylene glycol (EG) solvent. Transmission electron microscopy (TEM) results and UV–vis absorption spectra demonstrated that the as-prepared particles were well monodispersed, mostly composed of pure metallic Cu nanocrystals and extremely stable over extended period of simply sealed storage.
Databáze: OpenAIRE