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Preparation and Stabilization of Ag Nanoparticles in 1-Amino-4-methylpiperazine

  • Park, Heon-Soo (Department of Nanobiomedical Science & WCU Research Center, Dankook University Graduate School) ;
  • Shin, Ueon-Sang (Department of Nanobiomedical Science & WCU Research Center, Dankook University Graduate School) ;
  • Kim, Hae-Won (Department of Nanobiomedical Science & WCU Research Center, Dankook University Graduate School) ;
  • Gong, Myoung-Seon (Department of Nanobiomedical Science & WCU Research Center, Dankook University Graduate School)
  • Received : 2010.10.09
  • Accepted : 2010.11.17
  • Published : 2011.01.20

Abstract

Uniform Ag nanoparticles (< 10 nm) were effectively prepared in 1-amino-4-methylpiperazine as a solvent with multiple functions including reduction and stabilization. An Ag-complex such as $Ag_2(ehac)_2(eha)_2$ (ehac = 2-ethylhexylammonium carbamate; eha = 2-ethylhexylamine) was used as an Ag-precursor, whereas the usage of a salt such as $AgNO_3$ showed the formation of Ag nanoparticles in larger and irregular size (30 - 500 nm). The Ag nanoparticles (< 10 nm) prepared by using the Ag-complex could also be effectively stabilized by 1-amino-4-methylpiperazine. Transmission electron micrographs confirmed that the Ag particles were spherical and in the nanometer size.

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