Characteristic stability of bare Au-water nanofluids fabricated by pulsed laser ablation in liquids

Kim, Ho Jin; Bang, In Cheol; Onoe, Jun

doi:10.1016/j.optlaseng.2008.10.011

Cited by 153 publications

(54 citation statements)

References 25 publications

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“…Chemical routes have been proposed for a wide variety of materials, but in this method the impurities of the synthesis remain in the final product, which affects the quality of the nanofluid. [17][18][19][20][21][22] In the two-step method, the nanomaterial is first synthesized, washed and then dispersed in the conventional fluid to form nanofluid. This is the most widely used method because it is cheaper and allows high-scale use.…”

Section: Introductionmentioning

confidence: 99%

Aqueous Nanofluids Based on Copper MPA: Synthesis and Characterization

et al. 2018

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The application and use of efficient cooling fluids have become increasingly important due to the increasing industrial and energy demand associated with the miniaturization of various electronic devices. The search for high-efficiency heat exchanger fluids in the early 1990s led to the development of a new class of refrigerants called nanofluids. The use of nanofluids is linked to obtaining stable colloidal dispersions which exhibit high thermal conductivity. For this purpose, the efficiency of a nanofluid will depend on the type of fluid used and the dispersed nanomaterial. In this work, a stable aqueous nanofluid based on mercaptopropionic acid-coated copper sulfide nanoparticles (Cu 2 S/MPA), synthesized by the chemical reduction method, was developed. The nanofluid presented colloidal stability in alkaline medium and an average increase of 36% in thermal conductivity for a volumetric fraction of 0.05%.

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Section: Introductionmentioning

confidence: 99%

Aqueous Nanofluids Based on Copper MPA: Synthesis and Characterization

et al. 2018

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“…Pulse laser ablation in liquid (PLAL) has recently become one of fascinating top-down approaches for its simplicity in generating fine micro/nanoparticles with an outstanding purity and highly stable colloids. [1][2][3] Many studies have been carried out to improve the structure and morphology of gold colloids by engaging several processing elements, 4 including laser parameters, liquid species, physical conditions, and chamber design. When it comes to characterizing the AuNPs, sophisticated and expensive microscopic techniques such as transmission electron microscopy (TEM), atomic force microscopy, and scanning electron microscopy are often used.…”

Section: Introductionmentioning

confidence: 99%

In situmeasurement of gold nanoparticle production

et al. 2015

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Abstract. The closeness of the experimental and theoretical values enables the development of an in situ characterization technique to monitor and analyze the production of gold nanoparticles (NPs), overcoming the use of high-end and expensive instrumentation. Gold NPs below the radius size of 10 nm were successfully synthesized in accordance with a few working parameters of pulse laser ablation in a liquid technique. In this report, the size, shape, concentration, and aggregation properties of gold NPs were estimated by the Mie-Gans model based on a reliable and interactive real-time absorption spectroscopy. The major features can be an important means toward determination of efficient process measures, productivity of gold NPs generated, and efficiency of the mass ablation rate. The accuracy in the measurement is confirmed via transmission electron microscopy analysis.

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“…As the result discharge pressure and temperature and aero-power are obtained. [14]. A Q-switched Nd:YAG laser (wavelength: 532 nm) was used to produce Fe 2 O 3 nanofluid by varying an irradiation time 18hours.…”

Section: Wwwijaerscommentioning

confidence: 99%