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http://dx.doi.org/10.5012/bkcs.2010.31.9.2575

Preparation of Silver Nanocolloids Using Silver Alkylcarbamate Complex in Organic Medium with PVP Stabilizer  

Park, Hyung-Seok (Department of Nanobiomedical Science and WCU Research Center of Nanobiomedical Science)
Park, Heon-Su (Department of Nanobiomedical Science and WCU Research Center of Nanobiomedical Science)
Gong, Myoung-Seon (Department of Nanobiomedical Science and WCU Research Center of Nanobiomedical Science)
Publication Information
Abstract
We present a method for chemically reducing silver alkylcarbamate complex with hydrazine to synthesize silver nanocolloids in an organic solvent using polyvinylpyrrolidone (PVP) as the stabilizer. To determine the optimal conditions for preparing stable silver colloids of controlled size and shape, the silver 2-ethylhexylcarbamate (Ag-EHCB) complex, PVP, hydrazine, and 2-propanol solvent concentrations in the reaction mixture were varied. The initial colloid has a mean particle diameter of 5-80 nm, and it exhibits an absorption band with various shapes in the UV region with a maximum near 420 nm. UV-vis spectroscopy, TEM, and X-ray diffraction techniques were used to investigate the formation and growth process of the metallic silver nanocolloids.
Keywords
Silver nanocolloid; Polyvinylpyrrolidone; Silver alkylcarbamate; Organic solvent; Hydrazine;
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Times Cited By KSCI : 7  (Citation Analysis)
Times Cited By Web Of Science : 3  (Related Records In Web of Science)
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