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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 33, Number 12
BKCSDE 33(12)
December 20, 2012

Title	Preparation of Highly Stabilized Silver Nanopowders by the Thermal Reduction and Their Properties
Author	Kyoung-Young Kim, Myoung-Seon Gong, Chan-Kyo Park
Keywords	Silver 2-ethylhexylcarbamate, Nanopowders, Thermal reduction, Silver nano-paste
Abstract	Silver nanopowders were prepared from silver 2-ethylhexylcarbamate (Ag-EHCB) complexes by simple thermal reduction at 85 oC without any reducing agent in organic solvent. 2-Ethylhexylammonium 2- ethylhexylcarbamate (EHAEHC) was investigated in terms of their abilities to stabilize the silver nanoparticles (Ag-NPs) and its subsequent effects on the preventing aggregation between Ag-NPs. Conditions (concentration of stabilizer and reaction time) used to reduce Ag-EHCB complex were systematically varied to determine their effects on the sizes of Ag-NPs. The formation of the stabilized Ag-NPs were easily monitored by UV-vis spectroscopy and characterized by TGA, TEM, SEM and XRD. When EHAEHC was used as a stabilizer, Ag- NPs of 10-30 nm in diameter were easily obtained in high yield. Silver patterns were obtained from a silver nano-paste by heat treatment at 200 oC in air and were found to have resistivity values of 2.9 × 10−8 Ω·m.
Page	3987 - 3992
Full Text	PDF

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