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Optimal synthesis and characterization of Ag nanofluids by electrical explosion of wires in liquids.

Ju Park E, Won Lee S, Bang IC, Park HW - Nanoscale Res Lett (2011)

Bottom Line: In this study, we optimized the fabrication method and examined the effects of manufacturing process parameters.The average Ag nanoparticle size in water was 118.9 nm and the zeta potential was -42.5 mV.The critical heat flux of the 0.001-vol.% Ag nanofluid was higher than pure water.

View Article: PubMed Central - HTML - PubMed

Affiliation: School of Mechanical and Advanced Materials Engineering, UNIST 100 Banyeon-ri, Eonyang-eup, Ulju-gun, Ulsan Metropolitan City 689-798, Republic of Korea. hwpark@unist.ac.kr.

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 μF, 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 118.9 nm and the zeta potential was -42.5 mV. The critical heat flux of the 0.001-vol.% Ag nanofluid was higher than pure water.

No MeSH data available.


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Residual plots for Ag nanofluids. Particle size (a) and zeta potential (b).
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Figure 13: Residual plots for Ag nanofluids. Particle size (a) and zeta potential (b).

Mentions: Figures 11 and 12 show the main effects plot, interaction plot, and cube plot for size and zeta potential to quantitatively assess the effects of the parameters of EEWL. In the cube plot, the mean responses of the factors are displayed on the corners of the cube. Low levels of the factors are to the left, front, or bottom and high levels to the right, back, or front of the cube. Figure 13 represents the residual plot for size and zeta potential. The normal probability plot did not show any unusual features.


Optimal synthesis and characterization of Ag nanofluids by electrical explosion of wires in liquids.

Ju Park E, Won Lee S, Bang IC, Park HW - Nanoscale Res Lett (2011)

Residual plots for Ag nanofluids. Particle size (a) and zeta potential (b).
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3211281&req=5

Figure 13: Residual plots for Ag nanofluids. Particle size (a) and zeta potential (b).
Mentions: Figures 11 and 12 show the main effects plot, interaction plot, and cube plot for size and zeta potential to quantitatively assess the effects of the parameters of EEWL. In the cube plot, the mean responses of the factors are displayed on the corners of the cube. Low levels of the factors are to the left, front, or bottom and high levels to the right, back, or front of the cube. Figure 13 represents the residual plot for size and zeta potential. The normal probability plot did not show any unusual features.

Bottom Line: In this study, we optimized the fabrication method and examined the effects of manufacturing process parameters.The average Ag nanoparticle size in water was 118.9 nm and the zeta potential was -42.5 mV.The critical heat flux of the 0.001-vol.% Ag nanofluid was higher than pure water.

View Article: PubMed Central - HTML - PubMed

Affiliation: School of Mechanical and Advanced Materials Engineering, UNIST 100 Banyeon-ri, Eonyang-eup, Ulju-gun, Ulsan Metropolitan City 689-798, Republic of Korea. hwpark@unist.ac.kr.

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 μF, 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 118.9 nm and the zeta potential was -42.5 mV. The critical heat flux of the 0.001-vol.% Ag nanofluid was higher than pure water.

No MeSH data available.


Related in: MedlinePlus