Interlayer spacings in carbon nanotubes

Saito, Yahachi; Yoshikawa, Toshinori; Bandow, Shunji; Tomita, Masato; Hayashi, T.

doi:10.1103/physrevb.48.1907

Cited by 282 publications

(142 citation statements)

References 9 publications

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“…Asymmetric 10 and 11 peaks also support the presence of turbostratic carbon. Since XRD pattern of multi-walled carbon nanotubes resembles turbostratic graphite [29,30], there is a possibility that the structure of the region with loop in the carbon nanofilaments is similar to multi-walled carbon nanotubes.…”

Section: Structure Of Carbon Nanofilaments Heat-treated At 2800°cmentioning

confidence: 99%

“…The 002 line of the multi-walled carbon nanotubes is also sharp [29,30], such that the calculated Lc(002) should be larger than the radius of the nanotubes. Thus, for the curved graphene layers, thickness of the layers cannot be estimated from the 002 line broadening, although Lc values are often used to estimate the size of graphite.…”

Section: Structure Of Carbon Nanofilaments Heat-treated At 2800°cmentioning

confidence: 99%

See 1 more Smart Citation

Structure of the carbon nanofilaments formed by liquid phase carbonization in porous anodic alumina template

Habazaki

Kiriu

Hayashi

et al. 2007

Materials Chemistry and Physics

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Platelet structure carbon nanofilaments of ~30 nm in diameter have been prepared by heating a mixture of porous anodic alumina template and poly(vinyl)chloride powders in an argon atmosphere, and the change in their structure and morphology with heat treatment temperature, ranging from 600 to 2800°C, has been examined using XRD, scanning electron microscopy, transmission electron microscopy and nitrogen gas adsorption measurements.The diameter of the carbon nanofilaments formed does not change with heat treatment temperature, being in agreement with the pore diameter of the template, while their length is reduced with the temperature. The platelet-type orientation of graphene layers is evident even at 600 o C with the layer structure further developing with increasing heat treatment temperature. The carbon nanofilaments formed at lower temperatures have micropores, while those formed at higher temperatures do not have porosity. Highly graphitized carbon nanofilaments have been obtained after heat treatment at 2800°C, with another characteristic structural feature being presence of loops at the edge of graphene layers formed at 2800°C.

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Section: Structure Of Carbon Nanofilaments Heat-treated At 2800°cmentioning

confidence: 99%

Section: Structure Of Carbon Nanofilaments Heat-treated At 2800°cmentioning

confidence: 99%

Structure of the carbon nanofilaments formed by liquid phase carbonization in porous anodic alumina template

Habazaki

Kiriu

Hayashi

et al. 2007

Materials Chemistry and Physics

View full text Add to dashboard Cite

show abstract

“…Figure 9 shows the XRD spectra of the unaged and aged MWCNTs. From the spectra, one could see that ageing reduced intensity of the most intensive peaks for graphite and the MWCNTs [23], which demonstrated that ageing destroyed graphite-like structure of initial MWCNTs. Comparing Figure 9(a) and (b), we could see that the full width at halfmaximum (FWHM) of unaged MWCNTs was much larger than that of the aged.…”

Section: Resultsmentioning

confidence: 96%

Ageing effect on the field emission reproducibility of multiwalled carbon nanotubes

Zou

Wang

et al. 2011

Journal of Experimental Nanoscience

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The ageing effect on the field emission (FE) reproducibility of multiwalleded carbon nanotubes (MWCNTs) synthesised by plasma enhanced chemical vapour deposition was investigated by scanning electron microscopy. To investigate the ageing effect on the physical state of the MWCNTs, a scanning electron microscope (SEM), a Raman spectrometer, an X-ray photoelectron spectroscope and an X-ray diffractometer were used to characterise the MWCNTs comprehensively before and after the ageing. Through ageing, the FE reproducibility became better because the larger number and more evenly distributed shorter MWCNTs -(resulted from the local vacuum breakdown of higher MWCNTs due to Joule heating and oxidisation) -became the dominating emitters.

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“…Basically, the CNTs have single or multi-rolled up cylindrical graphite sheets (like a Russian doll-like structure) with the interlayer space as ∼0.34 nm [27], [35], [36]. Hence, there is possibility to use their fine structures directly.…”

Section: In Situ Fabrication and Actuation Of Telescoping Nanotubes Imentioning

confidence: 99%

Nano Robotic Manipulation inside Electron Microscopes

Fukuda

Nakajima

Liu

2008

SICE Journal of Control, Measurement, and System Integration

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: We report nanomanipulation and nanoassembly through nanorobotic manipulation inside electron microscopes. A hybrid nanorobotic manipulation system, which is integrated with a nanorobotic manipulator inside a transmission electron microscope (TEM) and nanorobotic manipulators inside a scanning electron microscope (SEM), is used. The elasticity of a multi-walled CNT (MWNT) is measured inside a TEM. The telescoping MWNT is fabricated by peeling off outer layers through destructive fabrication process. The electrostatic actuation of telescoping MWNT is directly observed by a TEM. A cutting technique for CNTs assisted by the presence of oxygen gas is also presented. The cutting procedure was conducted in less than 1 minute using a low-energy electron beam inside a scanning electron microscope. A bending technique of a CNT assisted by the presence of oxygen gas is also applied for the 3-D fabrication of nanosturucture. We expect that these techniques will be applied for the rapid prototyping nanoassembly of various CNT nanodevices. For the nano-biological applications, environmental-SEM (E-SEM) nanomanipulation system is also presented with the direct observation of the hydroscopic samples with non-drying treatment.

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Interlayer spacings in carbon nanotubes

Cited by 282 publications

References 9 publications

Structure of the carbon nanofilaments formed by liquid phase carbonization in porous anodic alumina template

Structure of the carbon nanofilaments formed by liquid phase carbonization in porous anodic alumina template

Ageing effect on the field emission reproducibility of multiwalled carbon nanotubes

Nano Robotic Manipulation inside Electron Microscopes

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