Synthesis of Carbon Nanotubes from Propane

Zdrojek, Mariusz; Sobieski, Jan; Dużyńska, Anna; Zbydniewska, Ewa; Strupiński, Włodek; Ratajczak, J.; Judek, Jarosław

doi:10.1002/cvde.201404329

Cited by 5 publications

(2 citation statements)

References 13 publications

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“…We also note that we tried to check if other carbon materials will be suitable for our measurements, but we failed. In the case of individual carbon nanotubes grown by the CVD method on Si/SiO 2 substrate, [ 66 ] we are not convinced if we are able to truly exclude effect “C.” In the case of CVD graphene, we were able to exclude the effect “D” but neither “C” [ 27 ] nor “F,” [ 44 ] the latter failed for a focused laser beam. In the case of thin graphite film, the homogeneity of a sample was high, but we were unable to include effect “E” because of the too high value of sample thermal conductivity.…”

Section: Methodsmentioning

confidence: 99%

Complexity of temperature‐dependent Raman spectra and phonons properties on the example of carbon nanotubes thin films

Gertych

Czerniak-Łosiewicz

Żerańska-Chudek

et al. 2020

J Raman Spectroscopy

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We examine the interplay between intrinsic phonon properties, the variability of material properties, and instrumental uncertainty reflected in temperaturedependent Raman spectra of inhomogeneous thin films made of two types of carbon nanotubes (metallic and semiconducting), employing statistical Raman mapping. First, we show that the contribution of temperature to Raman peaks properties representing given phonons depends on how the heat is delivered to the sample-global versus local laser heating. We also show that the variability of Raman peaks positions and widths is not negligible and can be separated into instrumental uncertainty and intrinsic material contribution. Finally, we discuss how temperature can affect different correlations and trends in Raman experiments (e.g., the influence of incident laser power on Raman temperature coefficient). Our findings can be useful for improving the reliability of Raman study for various classes of materials, including exfoliated 2D materials, freestanding thin films made of 2D flakes, or even bulk materials-not only carbon-based.

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Section: Methodsmentioning

confidence: 99%

Complexity of temperature‐dependent Raman spectra and phonons properties on the example of carbon nanotubes thin films

Gertych

Czerniak-Łosiewicz

Żerańska-Chudek

et al. 2020

J Raman Spectroscopy

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“…Zdrejek et al [40] demonstrated that CVD can be used to synthesize high quality SWCNTs and MWCNTs at a range of temperatures using pure propane as a carbon source in 2015. In their research report, it is proposed that adjusting the growth temperature can control the volume of carbon nanotubes.…”

Section: Carbon Sourcementioning

confidence: 99%

Synthesis of Carbon Nanotubes by Catalytic Chemical Vapor Deposition

Wang¹,

Vinodgopal²,

Dai³

2019

Perspective of Carbon Nanotubes

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As a new carbon material in the twenty-first century, carbon nanotubes (CNTs) have excellent optical, electrical, magnetic, thermal, chemical, and mechanical properties. There are many synthesis methods to produce CNTs. Compared with other methods, chemical vapor deposition (CVD) is the most effective method that has broad prospects for large-scale control of CNTs in recent years due to its simple equipment, simple operation, and lower cost. In order to gain a comprehensive understanding of the controlling parameters about the formation of CNTs, this chapter reviews the latest progress in the preparation of CNTs by CVD from three of the most important influencing factors: carbon sources, catalysts, and substrates. Among them, the catalyst is the most influential factor for the morphology, structure, and properties of CNTs. It should be pointed out that many growth factors can control the particle size distribution, composition, and structure of the catalysts, such as catalyst substrate, metal transition components added, calcination temperature, etc.

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