TAILIEUCHUNG - Ju Park et al. Nanoscale Research Letters 2011, 6:223

Ju Park et al. Nanoscale Research Letters 2011, 6:223 NANO EXPRESS Open Access Optimal synthesis and characterization of Ag nanofluids by electrical explosion of wires in liquids Eun Ju Park1, Seung Won Lee2, In Cheol Bang2, Hyung Wook Park1* Abstract Silver nanoparticles were produced by electrical explosion of wires in liquids with no additive. In this study, we optimized the fabrication method and examined the effects of manufacturing process parameters. Morphology and size of the Ag nanoparticles were determined using transmission electron microscopy and field-emission scanning electron microscopy. Size and zeta potential were analyzed using dynamic light scattering. A response optimization technique showed that. | Ju Park et al. Nanoscale Research Letters 2011 6 223 http content 6 1 223 o Nanoscale Research Letters a SpringerOpen Journal NANO EXPRESS Open Access Optimal synthesis and characterization of Ag nanofluids by electrical explosion of wires in liquids Eun Ju Park1 Seung Won Lee2 In Cheol Bang2 Hyung Wook Park1 Abstract Silver nanoparticles were produced by electrical explosion of wires in liquids with no additive. In this study we optimized the fabrication method and examined the effects of manufacturing process parameters. Morphology and size of the Ag nanoparticles were determined using transmission electron microscopy and field-emission scanning electron microscopy. Size and zeta potential were analyzed using dynamic light scattering. A response optimization technique showed that optimal conditions were achieved when capacitance was 30 gF wire length was 38 mm liquid volume was 500 mL and the liquid type was deionized water. The average Ag nanoparticle size in water was nm and the zeta potential was mV. The critical heat flux of the . Ag nanofluid was higher than pure water. Introduction As noble metal materials silver nanoparticles exhibit significantly distinct physical chemical and biological properties. Silver nanoparticles have attracted attention in a wide range of application fields 1-4 . Their unique properties result from particles on the nanoscale that are monodispersed and unagglomerated. Nanofluids dispersed nanoscale particles suspended in a base fluid 5 have drawn tremendous interest from scientific and industrial communities because of their unique properties. They have been used in many industrial applications such as heat transfer automotive electronic biomedical device manufacturing and others 6-10 . In particular nanofluids have gained interest as heat transfer fluids. Due to the high thermal conductivity of nanoscale metal particles metal-nanofluids may significantly enhance thermal transport .

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