Article ID Journal Published Year Pages File Type
9782969 Materials Chemistry and Physics 2005 5 Pages PDF
Abstract
Well-dispersed silver nanoparticles were prepared by chemical reduction method, with polyvinyl pyrrolidone (PVP) as dispersant. The mechanisms of PVP in the preparation process were discussed through the optical characters of the reaction system. It is indicated that PVP accelerated the reaction between silver ions and glucose, because it stabilized H+. PVP compounded with Ag and protected the silver particles from growing and agglomerating. Silver particles with diameter shorter than 50 nm was protected by the coordination between silver and N in PVP, and for the bigger particles, with the diameter of 500-1000 nm, both N and O coordinated with the silver.
Related Topics
Physical Sciences and Engineering Materials Science Electronic, Optical and Magnetic Materials
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