A single liquid chromatography procedure to concentrate, separate and collect size-selected polyynes produced by pulsed laser ablation in water

Peggiani, Sonia; Facibeni, Anna; Marabotti, Pietro; Vidale, Alessandro; Scotti, Stéfano; Casari, Carlo Spartaco

doi:10.1080/1536383x.2022.2137498

Cited by 3 publications

(1 citation statement)

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“…More recently, ultrafast lasers have been used to directly ablate a hydrocarbon liquid, thereby stimulating the formation of linear carbon chains (LCCs) [13,14]. Note that in addition to liquid hydrocarbons, water is used as a solvent for polyynes, thus reducing the toxicity of the final product [15,16].…”

Section: Introductionmentioning

confidence: 99%

Laser Intensity Effect on Polyyne Synthesis in Liquid Hydrocarbons

Kononenko,

Arutyunyan,

Ashikkalieva

et al. 2023

Photonics

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Laser synthesis of polyyne molecules C2nH2 (n > 2) in liquid hydrocarbons is a complex process in which intense pulsed radiation decomposes the initial carbon-containing substance (the hydrocarbon solvent itself or the solid carbon particles in a suspension). Notwithstanding the fact that the mechanism of pulsed laser ablation in liquids (PLAL) is widely accepted, the effect of the laser parameters on laser-driven polyyne formation is still not understood in detail. Here, we report a study of the polyyne yield as a function of the laser field intensity and exposure dose. Several carbon-containing liquids, including pure n-hexane, pure ethanol, and graphite powder suspended in ethanol, were treated with tightly focused picosecond IR radiation (wavelength of 1064 nm, pulse duration of 10 ps). The synthesis rate was characterized by UV-vis optical absorption spectroscopy. The yields of the polyynes were found to vary in exact accordance with the value of the absorbed laser energy, following specific nonlinear or linear laws. The influence of the laser intensity on the partial concentration of polyynes in the solution was analyzed.

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Section: Introductionmentioning

confidence: 99%

Laser Intensity Effect on Polyyne Synthesis in Liquid Hydrocarbons

Kononenko,

Arutyunyan,

Ashikkalieva

et al. 2023

Photonics

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Exploring the Growth Dynamics of Size‐Selected Carbon Atomic Wires with In Situ UV Resonance Raman Spectroscopy

Marabotti,

Peggiani,

Melesi

et al. 2024

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Short carbon atomic wires, the prototypes of the lacking carbon allotrope carbyne, represent the fundamental 1D system and the first stage in carbon nanostructure growth, which still exhibits many open points regarding their growth and stability. An in situ UV resonance Raman approach is introduced for real‐time monitoring of the growth of carbon atomic wires during pulsed laser ablation in liquid without perturbing the synthesis environment. Single‐chain species’ growth dynamics are tracked, achieving size selectivity by exploiting the peculiar optoelectronic properties of carbon wires and the tunability of synchrotron radiation. Diverse solvents are systematically explored, finding size‐ and solvent‐dependent production rates linked to the solvent's C/H ratio and carbonization tendency. Carbon atomic wires’ growth dynamics reveal a complex interplay between formation and degradation, leading to an equilibrium. Water, lacking in carbon atoms and reduced polyynes solubility, yields fewer wires with rapid saturation. Organic solvents exhibit enhanced productivity and near‐linear growth, attributed to additional carbon from solvent dissociation and low relative polarity. Exploring the dynamics of the saturation regime provides new insights into advancing carbon atomic wires synthesis via PLAL. Understanding carbon atomic wires’ growth dynamics can contribute to optimizing PLAL processes for nanomaterial synthesis.

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Is triple crossed C ₂₈ cyclic polyyne cluster a stable conformation?

Stoenoiu,

Putz,

Jäntschi

2023

Fullerenes, Nanotubes and Carbon Nanostructures

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A single liquid chromatography procedure to concentrate, separate and collect size-selected polyynes produced by pulsed laser ablation in water

Cited by 3 publications

References 31 publications

Laser Intensity Effect on Polyyne Synthesis in Liquid Hydrocarbons

Laser Intensity Effect on Polyyne Synthesis in Liquid Hydrocarbons

Exploring the Growth Dynamics of Size‐Selected Carbon Atomic Wires with In Situ UV Resonance Raman Spectroscopy

Is triple crossed C ₂₈ cyclic polyyne cluster a stable conformation?

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A single liquid chromatography procedure to concentrate, separate and collect size-selected polyynes produced by pulsed laser ablation in water

Cited by 3 publications

References 31 publications

Laser Intensity Effect on Polyyne Synthesis in Liquid Hydrocarbons

Laser Intensity Effect on Polyyne Synthesis in Liquid Hydrocarbons

Exploring the Growth Dynamics of Size‐Selected Carbon Atomic Wires with In Situ UV Resonance Raman Spectroscopy

Is triple crossed C 28 cyclic polyyne cluster a stable conformation?

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Is triple crossed C ₂₈ cyclic polyyne cluster a stable conformation?