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Materials synthesis in a bubble
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DOI：10.1557/mrs.2019.107.png)
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Abstract
En 中文
Ultrasonic sonochemistry and pulsed laser ablation in liquids (LAL) are modern techniques for materials synthesis that are in different ways linked to the formation and collapse of cavitation bubbles. We provide an overview of the physics of laser-induced and acoustically driven bubble oscillations and then describe how the high pressures and temperatures associated with ablation and bubble collapse, as well as emitted shock waves, take part in material synthesis inside and around the bubble. Emphasis is placed on the mechanisms of sonochemical synthesis and modification, and on a step-by-step account of the events from laser ablation through interaction of ablation products with the surrounding liquid up to the modification or aggregation of particles within the bubble. Both sonochemistry and LALs yield nanostructured materials and colloidal nanoparticles with unique properties. The synthesis process has been demonstrated to be scalable.
Keywords:
PULSED-LASER ABLATION
INTERPARTICLE COLLISIONS DRIVEN
REDUCED GRAPHENE OXIDE
SHOCK-WAVE EMISSION
SONOCHEMICAL SYNTHESIS
CAVITATION BUBBLES
NANOPARTICLE PRODUCTIVITY
OPTICAL-BREAKDOWN
PLASMA FORMATION
LIGAND-FREE
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