Preparation and Characterization of Nickel(Ni)-Silver(Ag) Core-Shell Nanoparticles for Conductive Pastes

Abstract

Nickel(Ni)-silver(Ag) core-shell nanoparticles with different shell thickness were synthesized with Ni nanoparticles by liquid phase reduction technique form water solution. The product was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and inductively coupled plasma spectroscopy (ICP). The results showed that the Ni nanoparticles are in sphere shape and the average diameter is 104nm , the nickel(Ni)-silver(Ag) core-shell nanoparticles has good crystallinity and the thinkness of Ag nanoshells could be effectively controlled by changing the concentration of silver nitrate. The product can be used for nickel-based conductive paste preparation because of the surface character of Ag and the magnetic property of Ni

Preparation of nickel–silver core–shell nanoparticles by liquid-phase reduction for use in conductive paste

“…[21] In our previous work, only the preparation of NPs was reported. [22] Therefore, in this study, we extend this previous work to the preparation of NiÀAg coreÀshell NPs by chemical reduction and their use in a conductive paste. For this, the composition and phase purity of the samples were investigated using X-ray diffraction (XRD) and inductively coupled plasma spectroscopy (ICP), whilst the morphology and size of the samples were characterised by scanning electron microscopy (SEM) and transmission electron microscopy (TEM).…”