Synthesis of graphene-related carbon nanoparticles from a liquid isopropanol precursor by a one-step atmospheric plasma process

Bodnar, Wiktor; Schiorlin, Milko; Frank, Anna; Schulz, T.; Wöhrl, Nicolas; Miron, Camelia; Scheu, Christina; Kolb, Juergen F.; Kruth, Angela

doi:10.1016/j.apsusc.2020.145926

Cited by 7 publications

(6 citation statements)

References 46 publications

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“…Unlike the very high 2D peak of the graphene obtained in ethanol, the carbon formed on the substrate surface had a lower 2D peak and the spectrum showed characteristics of graphitic carbon and amorphous carbon co‐existed. A similar study employing pulse‐wave atmospheric plasma using isopropanol as a liquid medium has reported the successful synthesis of free‐standing nanographite [ 17 ] with varying pulse widths and radio‐frequency (RF) powers. From their results, shorter pulse width and higher RF power produce nanographite with a high 2D peak comparable to the graphene produced in this study.…”

Section: Resultsmentioning

confidence: 99%

“…The ILP setup used in this study (Figure 1) has a point-toplane configuration that generates a filament-type plasma with a combination of spark and streamer discharge. [17,27] The plasma is irradiated on a circular area coinciding with the upper electrode. The qualitative presence of various species in different plasma points, (Point 1) gas phase (x = 1 mm), (Point 2) bulk liquid phase (x = −3 mm), and (Point 3) immersed substrate (x = −8 mm), during plasma irradiation has been determined from spectra (Figure 9) obtained in OES analysis.…”

Section: Plasma Diagnosticsmentioning

confidence: 99%

“…ILP synthesis of free-standing graphene using alcohols and hydrocarbons as liquid media has been reported in previous studies along with the elucidation of the nanographene's growth mechanism. [13,14,16,17] It is believed that the carbon species dissociated in the liquid, such as in ethanol, while being under the influence of the plasma discharge serves as the carbon precursor. As a result, six-membered ring structures are gradually formed through elimination and dehydration reactions.…”

Section: Introductionmentioning

confidence: 99%

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Deposition of carbon‐based materials directly on copper foil and nickel foam as 2D‐ and 3D‐networked metal substrates by in‐liquid plasma

Vega

Nguyen

Kondo

et al. 2023

Plasma Processes & Polymers

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In‐liquid plasma (ILP) process has been an attractive route for nanomaterial synthesis due to its high‐yield production in low‐temperature atmospheric pressure conditions. In comparison with conventional ILP synthesis that produces free‐standing nanomaterials, this work brings a new perspective on the application of the ILP process through carbon formation directly on ethanol‐immersed two‐dimensional (foil) and three‐dimensional (3D) (foam) metal substrates. Three types of carbon, including graphene, graphitic carbon, and amorphous carbon, were simultaneously produced during plasma discharge. Graphitic and amorphous carbon formed radially and coexisted on the metal substrate surface, while free‐standing graphene was produced in ethanol. A conformal coating was achieved on the exterior surface of the 3D‐networked substrate. The proposed mechanism for carbon formation on metal substrates is presented here.

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Section: Resultsmentioning

confidence: 99%

Section: Plasma Diagnosticsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Deposition of carbon‐based materials directly on copper foil and nickel foam as 2D‐ and 3D‐networked metal substrates by in‐liquid plasma

Vega

Nguyen

Kondo

et al. 2023

Plasma Processes & Polymers

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“…It seems that the carbon materials possessed the multi-walled carbon nanocapsule with walls consisting of several graphene layers ranging from two to six layers. The gaps between the atomic layers in these carbon products were around 0.34 nm, where the 0.34 nm distance can be associated with the lattice spacing of graphene layers [111][112][113][114]. This revealed that the carbon materials could be generated by applying the high-voltage discharge plasma on the glycine solution through deamination and decarboxylation reactions [40][41][42][43]98].…”

Section: 4 For Peermentioning

confidence: 99%

Pulsed Discharge Plasma in High-Pressure Environment for Water Pollutant Degradation and Nanoparticle Synthesis

Diono

Machmudah

Kanda

et al. 2021

Plasma

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The application of high-voltage discharge plasma for water pollutant decomposition and the synthesis of nanoparticles under a high-pressure argon gas environment (~4 MPa) was demonstrated. The experiments were carried out in a batch-type system at room temperature with a pulsed DC power supply (15.4 to 18.6 kV) as a discharge plasma source. The results showed that the electrode materials, the pulsed repetition rates, the applied number of pulses, and the applied voltages had a significant effect on the degradation reactions of organic compounds. Furthermore, carbon solid materials from glycine decomposition were generated during the high-voltage discharge plasma treatment under high-pressure conditions, while Raman spectra and the HRTEM images indicated that titanium dioxide with a brookite structure and titanium carbide nanoparticles were also formed under these conditions. It was concluded that this process is applicable in practice and may lead to advanced organic compound decomposition and metal-based nanoparticle synthesis technologies.

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“…There, the combustion is commonly initiated by an electric discharge from a spark plug. Plasmas in alcohols are also used as sources of molecular hydrogen [7], in medical applications [8], and material synthesis [7,9]. These applications have motivated studies devoted to measuring the cross sections for electron-alcohols collisions [10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Electron swarm parameters of alcohols from electron collision cross–sections

Silva,

Ballester

2024

Preprint

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The rationalization and modeling of an electric discharge in a fluid are enriched with the knowledge of electron swarm parameters. In this work, transport coefficients of several alcohols: methanol, ethanol, propanol, and butanol, are reported. The electron energy distribution function, mean energy, reduced mobility and diffusion coefficient, are calculated using the two-term expansion of the electron Boltzmann equation in the frame of BOLSIG+ and the Monte Carlo collision code METHES. For such, experimental and theoretical values of the electronalcohol collision cross-section, covering a range of electron impact energy from 1 eV to 1000 eV, are employed. A temperature of 300K, reduced fields E/N between 1−104 Td (1Td = 10−21 Vm2), and Plasma density of 1019 m−3 were used in simulations. The calculated coefficients are compared with data available from previous studies.

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Synthesis of graphene-related carbon nanoparticles from a liquid isopropanol precursor by a one-step atmospheric plasma process

Cited by 7 publications

References 46 publications

Deposition of carbon‐based materials directly on copper foil and nickel foam as 2D‐ and 3D‐networked metal substrates by in‐liquid plasma

Deposition of carbon‐based materials directly on copper foil and nickel foam as 2D‐ and 3D‐networked metal substrates by in‐liquid plasma

Pulsed Discharge Plasma in High-Pressure Environment for Water Pollutant Degradation and Nanoparticle Synthesis

Electron swarm parameters of alcohols from electron collision cross–sections

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