Optical and Magnetic Properties of Ag–Ni Bimetallic Nanoparticles Assembled via Pulsed Laser-Induced Dewetting

Garfinkel, David A.; Pakeltis, Grace; Tang, Nan; Ivanov, Ilia N.; Fowlkes, Jason D.; Gilbert, Dustin A.; Rack, Philip D.

doi:10.1021/acsomega.0c02894

Cited by 39 publications

(25 citation statements)

References 39 publications

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“…The findings here will help to understand how to control the synthesis of alloy metallic nanoparticles, see e.g. [59]. Basilisk [25], which is the Gerris successor numerical framework, is used here.…”

Section: Resultsmentioning

confidence: 99%

Challenges of Numerical Simulation of Dynamic Wetting Phenomena: A Review

Afkhami¹

2021

Preprint

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Wetting is fundamental to many technological applications that involve the motion of the fluid-fluid interface on a solid. While static wetting is well understood in the context of thermodynamic equilibrium, dynamic wetting is more complicated in that liquid interactions with a solid phase, possibly on molecular scales, can strongly influence the macroscopic scale dynamics. The problem with continuum models of wetting phenomena is then that they ought to be augmented with microscopic models to describe the molecular neighborhood of the moving contact line. In this review, widely used models for the computation of wetting flows are summarized first, followed by an overview of direct numerical simulations based on the Volume-of-Fluid approach. Recent developments in the Volume-of-Fluid simulations of the wetting are then reviewed, with a particular attention paid on combining macro-scale simulations with the hydrodynamic theory near the moving contact line, as well as including a microscopic description by coupling with the van der Waals interface model. Finally, the extension to modeling the contact line motion on non-flat surfaces is surveyed, followed by hot topics in nucleate boiling.

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Section: Resultsmentioning

confidence: 99%

Challenges of Numerical Simulation of Dynamic Wetting Phenomena: A Review

Afkhami¹

2021

Preprint

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“…Sol-gel, colloidal precipitation, solvent thermal, electrodeposition, and soft/hard template assisted routes are some of the well-known bottom-up techniques reported for the nanoparticle preparation. [6][7][8][9][10][11][12] The soft/hard templates are preferred to prepare functional materials with homogeneous morphology and size. [12,13] A highly graphitic nitrogen-doped porous carbon electrocatalyst was fabricated by using metalorganic framework as a sacrificial template.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of ultra‐thin alumina membranes utilizing waste aluminum cans

Anh,

Toan,

Tung

et al. 2022

Vietnam Journal of Chemistry

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We report on utilizing waste aluminum cans for anodic aluminum oxide (AAO) membranes fabrication. Aluminum (Al) presents in the cans is about 97 % tested via inductively coupled plasma‐mass spectrometry. Synthesis process of the AAO membranes includes heat‐treatment and surface polishing of the waste Al sheets, first anodization, aluminum oxide layer removing, second anodization, aluminum substrate separating and pore‐widening. Thickness and morphology of the prepared AAO membranes are observed through a field emission scanning electron microscopy. By controlling the second anodization time, the AAO membranes possess ultra‐thin thickness in the range of ~60‐650 nm. The average pore densities ~1.2 × 1010 and ~ 3.0 × 1010 hole/cm2 of the AAO membranes are obtained at constant anodization voltage of 40 and 25 V, respectively. Hole diameter of the AAO membranes can be varied from 30 to 95 nm via managing the pore‐widening time. The ultra‐thin AAO membranes with order nano‐hole arrays can be used as hard‐templates which are promising for unique nanostructures synthesis at low cost and environment friendly.

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“…Ni-based alloy/core-shell nanoparticles have been well-explored in heterogeneous catalysis due to their “cost-effective” properties ([ 11 ] and references therein). They also have shown magneto-plasmonic behavior and have potential biomedical applications (e.g., for magnetic resonance imaging) [ 17 ].…”

Section: Introductionmentioning

confidence: 99%

Near-Infrared Femtosecond Laser Ablation of Au-Coated Ni: Effect of Organic Fluids and Water on Crater Morphology, Ablation Efficiency and Hydrodynamic Properties of NiAu Nanoparticles

et al. 2021

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Scanning electron microscopy (SEM) and profilometry of the crater morphology and ablation efficiency upon femtosecond laser ablation of Au-coated Ni targets in various fluids revealed a pronounced dependence on the ablation medium. For ethanol, a sufficient ablation efficiency was obtained, whereas for 2-butanol a higher efficiency indicated stronger laser–target interaction. Hierarchical features in the crater periphery pointed to asymmetrical energy deposition or a residual effect of the Coulomb-explosion-initiating ablation. Significant beam deviation in 2-butanol caused maximum multiple scattering at the crater bottom. The highest values of microstrain and increased grain size, obtained from Williamson–Hall plots, indicated the superposition of mechanical stress, defect formation and propagation of fatigue cracks in the crater circumference. For n-hexane, deposition of frozen droplets in the outer crater region suggested a femtosecond-laser-induced phase explosion. A maximum ablation depth occurred in water, likely due to its high cooling efficiency. Grazing incidence micro X-ray diffraction (GIXRD) of the used target showed residual carbon and partial surface oxidation. The produced nanoparticle colloids were examined by multiangle dynamic light scattering (DLS), employing larger scattering angles for higher sensitivity toward smaller nanoparticles. The smallest nanoparticles were obtained in 2-butanol and ethanol. In n-hexane, floating carbon flakes originated from femtosecond-laser-induced solvent decomposition.

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Optical and Magnetic Properties of Ag–Ni Bimetallic Nanoparticles Assembled via Pulsed Laser-Induced Dewetting

Cited by 39 publications

References 39 publications

Challenges of Numerical Simulation of Dynamic Wetting Phenomena: A Review

Challenges of Numerical Simulation of Dynamic Wetting Phenomena: A Review

Fabrication of ultra‐thin alumina membranes utilizing waste aluminum cans

Near-Infrared Femtosecond Laser Ablation of Au-Coated Ni: Effect of Organic Fluids and Water on Crater Morphology, Ablation Efficiency and Hydrodynamic Properties of NiAu Nanoparticles

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