Preparation of Highly Stabilized Silver Nanopowders by the Thermal Reduction and Their Properties 


Vol. 33,  No. 12, pp. 3987-3992, Dec.  2012
10.5012/bkcs.2012.33.12.3987


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  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.

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  Cite this article

[IEEE Style]

K. Kim, M. Gong, C. Park, "Preparation of Highly Stabilized Silver Nanopowders by the Thermal Reduction and Their Properties," Bulletin of the Korean Chemical Society, vol. 33, no. 12, pp. 3987-3992, 2012. DOI: 10.5012/bkcs.2012.33.12.3987.

[ACM Style]

Kyoung-Young Kim, Myoung-Seon Gong, and Chan-Kyo Park. 2012. Preparation of Highly Stabilized Silver Nanopowders by the Thermal Reduction and Their Properties. Bulletin of the Korean Chemical Society, 33, 12, (2012), 3987-3992. DOI: 10.5012/bkcs.2012.33.12.3987.

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ISSN(Print) 0253-2964
ISSN(Online) 1229-5949