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http://dx.doi.org/10.5012/bkcs.2011.32.5.1583

Preparation of Silver Nanoparticles in Ultrasonic Vibration-Induced Nanodroplets of Isopropyl Alcohol in Combination with Ionic Liquids  

Shin, Ueon-Sang (Department of Nanobiomedical Science & WCU Research Center, Dankook University Graduate School)
Hong, Hyun-Ki (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)
Publication Information
Bulletin of the Korean Chemical Society / v.32, no.5, 2011 , pp. 1583-1586 More about this Journal
Abstract
Silver nanoparticles (<10 nm) were prepared in ultrasonic vibration-induced nanodroplets of isopropyl alcohol (IPA) in combination with hydrophobic room temperature ionic liquids (RTILs). The Ag-precursor used were silver (I) complex, Ag$_2$(ehac)$_2$(eha)$_2$ (ehac = 2-ethylhexylammonium carbamate; eha = 2-ethylhexylamine), in IPA, while 1-butyl-3-methylimidazolium-based ionic liquids bearing $SbF_6^-$, $PF_6^-$ and $NTf_2^-$ as counter anions were used as RTILs. During sonication for 10-90 min at room temperature, uniform silver nanoparticles with mean sizes of 2 to 8 nm were rapidly synthesized. Transmission electron micrographs also confirmed that silver nanoparticles have a spherical shape and diverse sizes depending on the reaction time (10-90 min).
Keywords
Silver nanoparticles; Ionic liquids; Nanodroplets;
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