In situ surface-enhanced Raman spectroscopy to investigate polyyne formation during pulsed laser ablation in liquid

Marabotti, Pietro; Peggiani, Sonia; Facibeni, Anna; Serafini, Patrick; Milani, Alberto; Russo, Valeria; Bassi, Andrea; Casari, Carlo Spartaco

doi:10.1016/j.carbon.2021.12.060

Cited by 9 publications

(20 citation statements)

References 73 publications

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“…The Raman laser beam is focused on the pellet surface from outside the glass vial. The ablation laser (PLAL laser) is directed on the graphite target far away from the pellet [16] Hu et al [73], Zaidi et al [74,75], Sato et al [76], Wesolowski et al [77] investigated the synthesis of polyynes by direct irradiation of solvents with femtosecond laser pulses. In these papers, they employed time of flight mass spectroscopy as the detection technique that, in this specific case, can be considered equivalent to an in situ method.…”

Section: Investigation Of the Formation Of Polyynes Via Plal By In Si...mentioning

confidence: 99%

Section: Investigation Of the Formation Of Polyynes Via Plal By In Si...mentioning

confidence: 99%

“…In this framework, we studied the polyynes formation in solvents with nanosecond laser employing surface-enhanced Raman spectroscopy in two different works [16,79]. In the first work, we developed a surface-enhanced Raman scattering substrate to investigate the formation of polyynes during PLAL in acetonitrile (see Figure 3) [16]. We exploited the Raman signal enhancement given by the interaction of metal nanoparticles on the substrate with polyynes in the ablation solvent to acquire SERS spectra during 60 min of ablation in acetonitrile (see Figure 3a).…”

Section: Investigation Of the Formation Of Polyynes Via Plal By In Si...mentioning

confidence: 99%

“…We have chosen acetonitrile due to the possibility to synthesize a wide range of polyynes both in terms of chain length and terminations [42,67]. We analyzed the solutions of sp-carbon chains through high-performance liquid chromatography (HPLC), as described in our works [16,42]. HPLC turned out to be one of the best detection methods to analyze the mixtures of polyynes in the most complete way.…”

Section: The Role Of the Fluence In The Synthesis Of Polyynesmentioning

confidence: 99%

“…The ablation time was fixed to 15 min for all the experiments. We calculated the fluences following the method illustrated in the Supporting Information of our paper [16].…”

Section: The Role Of the Fluence In The Synthesis Of Polyynesmentioning

confidence: 99%

See 4 more Smart Citations

Pulsed laser ablation in liquid of sp-carbon chains: Status and recent advances

Marabotti

Peggiani²,

Vidale³

et al. 2022

Chinese Phys. B

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This review provides a discussion of the current state of research on sp-carbon chains synthesized by pulsed laser ablation in liquid. In recent years, pulsed laser ablation in liquid (PLAL) has been widely employed for polyynes synthesis thanks to its flexibility with varying laser parameters, solvents, and targets. This allows the control of sp-carbon chains properties as yield, length, termination and stability. Although many reviews related to PLAL have been published, a comprehensive work reporting the current status and advances related to the synthesis of sp-carbon chains by PLAL is still missing. Here we first review the principle of PLAL and the mechanisms of formation of sp-carbon chains. Then we discuss the role of laser fluence (i.e. energy density), solvent, and target for sp-carbon chains synthesis. Lastly, we report the progress related to the prolonged stability of sp-carbon chains by PLAL encapsulated in polymeric matrices. This review will be a helpful guide for researchers interested in synthesizing sp-carbon chains by PLAL.

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Section: Investigation Of the Formation Of Polyynes Via Plal By In Si...mentioning

confidence: 99%

Section: Investigation Of the Formation Of Polyynes Via Plal By In Si...mentioning

confidence: 99%

Section: Investigation Of the Formation Of Polyynes Via Plal By In Si...mentioning

confidence: 99%

Section: The Role Of the Fluence In The Synthesis Of Polyynesmentioning

confidence: 99%

“…The ablation time was fixed to 15 min for all the experiments. We calculated the fluences following the method illustrated in the Supporting Information of our paper [16].…”

Section: The Role Of the Fluence In The Synthesis Of Polyynesmentioning

confidence: 99%

See 3 more Smart Citations

Pulsed laser ablation in liquid of sp-carbon chains: Status and recent advances

Marabotti

Peggiani²,

Vidale³

et al. 2022

Chinese Phys. B

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Ultra‐Clean Isotope Engineered Double‐Walled Carbon Nanotubes as Tailored Hosts to Trace the Growth of Carbyne

Cui

Simón

Zhang

et al. 2022

Adv Funct Materials

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A unique scope of mechanical, optical, and electrical properties makes the 1-D allotrope of carbon, carbyne, one of the most promising materials for applications in various fields. Despite the important progress in the synthesis of carbyne confined to double-walled carbon nanotubes (DWCNTs), its formation and growth mechanisms remain elusive. Here, it is shown how a rational design of isotope-engineered ultra-clean DWCNTs with 13 C-enriched inner walls-which act as precursors and as tailored hosts-can trace the growth mechanism of confined carbyne upon high-vacuum annealing at high temperatures. It is unambiguously proven that an exchange of C atoms between the inner and outer tubes takes place, and it is distinguished from the growth of confined carbyne. The latter only happens after the ultra-clean DWCNT hosts react by partial oxidation yielding encapsulated carbonaceous products, which are well-defined precursors for the carbyne synthesis with a record of ≈28.8% 13 C enrichment. Tracing the synthesis of carbyne and disentangling it from concomitant high-temperature processes like healing, reorganization and regrowth of DWCNTs are a crucial step towards accessing the full application potential of confined carbyne hybrids by tailoring the isotopic fillers, as well as the inner and outer tubes of the DWCNT hosts.

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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

Small

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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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In situ surface-enhanced Raman spectroscopy to investigate polyyne formation during pulsed laser ablation in liquid

Cited by 9 publications

References 73 publications

Pulsed laser ablation in liquid of sp-carbon chains: Status and recent advances

Pulsed laser ablation in liquid of sp-carbon chains: Status and recent advances

Ultra‐Clean Isotope Engineered Double‐Walled Carbon Nanotubes as Tailored Hosts to Trace the Growth of Carbyne

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

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