Abstract
Silver particles with various morphologies were prepared by a facile synthesis via the reduction of silver ions in an ethylene glycol solution with poly(vinyl pyrrolidone) (PVP) and trace amounts of sodium chloride. Preparative conditions such as reaction temperature (from 120 to 160 °C), time, and the concentration of starting materials were optimized for the purpose of controlling the morphology of Ag particles. Scanning electron microscopy indicated Ag particles with various morphologies such as rod, cubic, and spherical. The creation of various morphologies was ascribed to the select adsorption ability of PVP and the erosion behavior of the chloride ion. Because of the morphology dependence of the Ag particles on the preparative conditions, this strategy provided a platform for controlling the morphologies of metallic particles.
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