title: Facile fabrication of ultrafine copper nanoparticles in organic solvent.
abstract: 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.
authors.affiliation: Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials and Department of Chemistry, Fudan University, Shanghai, 200433, China. wbcai@fudan.edu.cn.
authors.forename: Han-Xuan
authors.initials: HX
authors.lastname: Zhang
authors.forename: Uwe
authors.initials: U
authors.lastname: Siegert
authors.forename: Ran
authors.initials: R
authors.lastname: Liu
authors.forename: Wen-Bin
authors.initials: WB
authors.lastname: Cai