Comparison of laser ablation with spark discharge techniques used for nanoparticle production

Voloshko, A.; Colombier, Jean‐Philippe; Itina, Tatiana E.

doi:10.1016/j.apsusc.2014.10.077

Cited by 14 publications

(7 citation statements)

References 36 publications

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“…figure 3). Mean 10820 3.85×10 13 6.08×10 17 3.59×10 16 9.24×10 14 3.49×10 16 9.63×10 14 Fast imaging was used in order to acquire data on the shape of the discharge in the SDG during the afterglow. Generally, the cylindrical shape of the discharge which is characteristic to the arc stage, becomes more diffuse after the current stops flowing between the electrodes [18].…”

Section: Characterization Of the Discharge During The Afterglowmentioning

confidence: 99%

“…6.43×10 17Error ±130 ±0.36×10 13 ±0.16×10 17 ±0.39×10 16 ±1.08×10 14 ±0.38×10 16 ±1.08×10 14 ±0.16×1017 …”

mentioning

confidence: 98%

“…Most of these studies focused on the physical and chemical characterization of the produced particles [5,[8][9][10][11][12][13] and potential particle formation mechanisms [14][15][16], but only a couple of attempts have been made to describe the characteristics of the plasma in the SDG during NP generation (e.g. [17,18]). However, the fundamental description of the SDG spark is clearly a very important step towards the understanding of elementary processes leading to NP formation and hence towards gaining better control over NP production.…”

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confidence: 99%

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Characterization of a copper spark discharge plasma in argon atmosphere used for nanoparticle generation

Kohut

Galbács

Márton

et al. 2017

Plasma Sources Sci. Technol.

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Spark discharge nanoparticle generation is a dynamically developing application of discharge plasmas. In the present study a spark plasma used for nanoparticle generation is characterized by means of spatially and temporally resolved optical emission spectroscopy (OES) supplemented by fast imaging. The data acquired during the generation of copper nanoparticles in argon ambient is used to describe the spatial and temporal evolution of the species in the spark gap and to derive plasma parameters such as excitation temperature and electron concentration on one hand, and the concentration of the Cu species eroded by a single spark on the other. It is shown that temporally and spatially resolved OES together with a simple equilibrium model are efficient tools to estimate the characteristics of the spark discharge plasma that typically exists in spark discharge nanoparticle generators.

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Section: Characterization Of the Discharge During The Afterglowmentioning

confidence: 99%

“…6.43×10 17Error ±130 ±0.36×10 13 ±0.16×10 17 ±0.39×10 16 ±1.08×10 14 ±0.38×10 16 ±1.08×10 14 ±0.16×1017 …”

mentioning

confidence: 98%

mentioning

confidence: 99%

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Characterization of a copper spark discharge plasma in argon atmosphere used for nanoparticle generation

Kohut

Galbács

Márton

et al. 2017

Plasma Sources Sci. Technol.

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“…The laser plume undergoes a rapid spatial expansion, which is slowed down due to its compression in the surrounding atmosphere. Typical models of nanosecond laser ablation consist of several stages including the laser heating and evaporation of the target, the laser heating and expansion of the plasma plume and the condensation process giving rise to the formation of NPs [8,9,10].…”

Section: Introductionmentioning

confidence: 99%

Influence of the reactive atmosphere on the formation of nanoparticles in the plasma plume induced by nanosecond pulsed laser irradiation of metallic targets at atmospheric pressure and high repetition rate

Girault

Garrec

Mitchell

et al. 2016

Applied Surface Science

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International audienceThe influence of a reactive atmosphere on the formation of nanoparticles (NPs) in the plasma plume generated by nanosecond pulsed laser irradiation of metal targets (Ti, Al, Ag) was probed in-situ using Small Angle X-ray Scattering (SAXS). Air and different O2-N2 gas mixtures were used as reactive gas within atmospheric pressure. SAXS results showed the formation of NPs in the plasma-plume with a mean radius varying in the 2-5 nm range. A decrease of the NPs size with increasing the O2 percentage in the O2-N2 gas mixture was also showed. Ex-situ observations by transmission electron microscopy and structural characterizations by x-ray diffraction and Raman spectroscopy were also performed for powders collected in experiments done using air as ambient gas. The stability of the different metal oxides is discussed as being a key parameter influencing the formation of NPs in the plasma-plume (E-MRS 2015 Spring Meeting Symposium CC: “Laser and plasma processing for advanced applications in material science”, 11-15 May 2015, Lille (France

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“…Tabrizi [6,[13][14] used the microsecond spark discharge generator to synthesize bimetallic nanoparticles with an arbitrary mixing on nanoscales. Voloshko and Itina [15,16] had numerically investigated the formation of metallic micro/nanoparticles via elucidating physical mechanisms and thermodynamic analysis to compare the nucleation rate and particles size in two methods. Anis [17] synthesized Ni and Pt nanomaterials in acidic and alkaline solutions via glow discharge to verify the two kinds of synthesis mechanisms.…”

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confidence: 99%

The formation mechanism and morphology of the nickel particles by the ultrasound-aided spark discharge in different liquid media

Liu

et al. 2016

Advanced Powder Technology

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Spark discharge is widely applied to fabricate the small scale particles. The ultrasound-aided spark discharge process is based on an electrical discharge in liquid media in the electrical discharge machining (EDM). The morphology, element composition, and crystal structure of Nickle particles were observed analyzed by SEM, EDS and XRD, respectively. The EDS and XRD indicated a high purity nickel particle generated in pure water. Plus, the effects of dielectric mediums on the size distribution were investigated. The size distribution of particles in pure water is narrower than in kerosene. This distribution is remarkable after the ultrasound is introduced into the generating process. Based on the attaching and entrapping processes, the formation mechanism of different structural particles was interpreted. The results serve as a guide for the future research on controlling the particle properties such as size and morphology through improving the experimental conditions.

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Comparison of laser ablation with spark discharge techniques used for nanoparticle production

Cited by 14 publications

References 36 publications

Characterization of a copper spark discharge plasma in argon atmosphere used for nanoparticle generation

Characterization of a copper spark discharge plasma in argon atmosphere used for nanoparticle generation

Influence of the reactive atmosphere on the formation of nanoparticles in the plasma plume induced by nanosecond pulsed laser irradiation of metallic targets at atmospheric pressure and high repetition rate

The formation mechanism and morphology of the nickel particles by the ultrasound-aided spark discharge in different liquid media

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