Comparison of the productivity and ablation efficiency of different laser classes for laser ablation of gold in water and air

Dittrich, Sarah; Streubel, René; McDonnell, Cormac; Huber, Heinz P.; Barcikowski, Stephan; Gökce, Bilal

doi:10.1007/s00339-019-2704-8

Cited by 43 publications

(49 citation statements)

References 65 publications

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“…This finding confirms the origin of a negative impact of an increasing pulse duration on the ablation rate in the presence of the liquid environment. In another study, Dittrich et al compared the absolute and power-specific productivity of LAL of gold in water for a compact, a middle class and a high-end laser system [ 101 ]. The authors applied LAL in a liquid flow and with sufficient laser scanning to limit shielding effects.…”

Section: Lal Synthesis Methods: Principle Process Parameters and mentioning

confidence: 99%

Nanoparticles Engineering by Pulsed Laser Ablation in Liquids: Concepts and Applications

et al. 2020

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Laser synthesis emerges as a suitable technique to produce ligand-free nanoparticles, alloys and functionalized nanomaterials for catalysis, imaging, biomedicine, energy and environmental applications. In the last decade, laser ablation and nanoparticle generation in liquids has proven to be a unique and efficient technique to generate, excite, fragment and conjugate a large variety of nanostructures in a scalable and clean way. In this work, we give an overview on the fundamentals of pulsed laser synthesis of nanocolloids and new information about its scalability towards selected applications. Biomedicine, catalysis and sensing are the application areas mainly discussed in this review, highlighting advantages of laser-synthesized nanoparticles for these types of applications and, once partially resolved, the limitations to the technique for large-scale applications.

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Section: Lal Synthesis Methods: Principle Process Parameters and mentioning

confidence: 99%

Nanoparticles Engineering by Pulsed Laser Ablation in Liquids: Concepts and Applications

et al. 2020

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“…Recently, Dittrich et al. reported a more than 5 times higher power‐specific productivity of less expensive compact class lasers (<10 k€) compared to mid‐class (<100 k€) and high‐end (>100 k€) laser systems suggesting that a significantly larger fraction of laser energy leads to particle formation for compact lasers highlighting that laser‐based synthesis is well affordable not only in industrial but also fundamental research studies . Consequently, with the given productivity, sufficient quantities of colloidal nanoparticles are made available by laser ablation such that the same batch of nanoparticles with preadjusted nanomaterial characteristics (e. g. particle size or alloy composition) can be used to study different support materials at different loadings in catalytically relevant scales) …”

Section: Nanointegration: Supported Laser‐generated Particlesmentioning

confidence: 99%

Perspective of Surfactant‐Free Colloidal Nanoparticles in Heterogeneous Catalysis

et al. 2019

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Due to material gaps and synthesis‐related cross‐correlations in heterogeneous catalysis, chemists and physicists are constantly motivated to develop novel catalyst preparation methods for independent control of morphology, size, and composition. Within this article, advances, opportunities, and the current limits of laser‐based catalyst preparation technique, as well as synergies with conventional methods will be reviewed in terms of purity, particle size, morphology, composition, and nanoparticle‐support interaction. It will be shown, that the surfactant‐free particles represent ideal model materials to validate kinetic models and conduct parametric activity studies by independent adjustment of functional properties like nanoparticle size, composition, and load. Consequently, the importance of transient plasma dynamics tailoring nanoparticle formation will be pointed out, comparing experimental studies with own calculations and novel simulations taken from literature. Finally, perspectives of surfactant‐free colloidal nanoparticles for unrevealing active sites in heterogeneous catalysts are presented.

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“…The main advantages of the method are its straightforward experimental design, a high variety of applicable combinations of solid material and liquid, and the absent need of using ligands to control the nanoparticle formation. Gold (Torres-Mendieta et al 2016), (Binaymotlagh et al 2016), (Dittrich et al 2019) and platinum (Angelov et al 2016), (Mendivil Palma et al 2016), (Censabella et al 2019) are often-used materials for LSC studies due to their high relevance for application.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of gold, platinum, and gold-platinum alloy nanoparticle colloids with high-power megahertz-repetition-rate lasers: the importance of the beam guidance method

et al. 2021

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Nanoparticles of noble metals and their alloys are of particular interest for biomedicine and catalysis applications. The method of laser ablation of bulk metals in liquids gives facile access to such particles as high-purity colloids and is already used in industrial research. However, the method still lacks sufficient productivity for industrial implementation into series production. The use of innovative laser technology may help to further disseminate this colloid synthesis method in the near future. Ultrashort-pulsed lasers with high powers and megahertz-repetition-rates became available recently, but place high demands on the accurate optical laser pulse delivery on the target. Full lateral pulse separation is necessary to avoid a reduction of nanoparticle productivity due to pulse shielding. In this study, we compare flexible but rather slow galvanometer scanning with much faster but more expensive polygon-wheel scanning in their performance in the production of colloidal nanoparticles by laser ablation in liquid. Both beam guidance technologies are applied in the laser ablation of gold, platinum, and a gold-rich platinum alloy in micromolar saline water. We found that the dimensions of the scan pattern are crucial. A threshold pattern length exists, at which one scan technology becomes more productive than the other one. In addition, a much lower productivity was found for the ablation of gold compared to that of platinum. Alloying gold with only 10 at.% of platinum improved the productivity nearly to the level of platinum, reaching 8.3 g/h.

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Comparison of the productivity and ablation efficiency of different laser classes for laser ablation of gold in water and air

Cited by 43 publications

References 65 publications

Nanoparticles Engineering by Pulsed Laser Ablation in Liquids: Concepts and Applications

Nanoparticles Engineering by Pulsed Laser Ablation in Liquids: Concepts and Applications

Perspective of Surfactant‐Free Colloidal Nanoparticles in Heterogeneous Catalysis

Synthesis of gold, platinum, and gold-platinum alloy nanoparticle colloids with high-power megahertz-repetition-rate lasers: the importance of the beam guidance method

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