Preferential synthesis and isolation of (6,5) single-wall nanotubes from one-dimensional C60 coalescence

Zhang, Jinying; Miyata, Yasumitsu; Kitaura, Ryo; Shinohara, Hisanori

doi:10.1039/c1nr10602c

Cited by 32 publications

(36 citation statements)

References 19 publications

(53 reference statements)

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“…Thermal coalescence of the confined molecules led to the generation of inner tubes within CNTs, which were then extracted using the ultrasonication approach as reported in our previous studies89. In brief, the annealed CNTs sample, with the capped ends reopen by heating in air at 550 °C for 10 min, was sonicated in 3.58 ml aqueous solution with 1% weight per volume (w/v) sodium deoxycholate (DOC, C 24 H 39 NaO 4 , TCI) for 20 h using an ultrasonic bath sonicator (Nanoruptor, NR-350, Cosmo Bio Co. Ltd).…”

Section: Methodsmentioning

confidence: 99%

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Growth of carbon nanotubes via twisted graphene nanoribbons

et al. 2013

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Carbon nanotubes have long been described as rolled-up graphene sheets. It is only fairly recently observed that longitudinal cleavage of carbon nanotubes, using chemical, catalytical and electrical approaches, unzips them into thin graphene strips of various widths, the so-called graphene nanoribbons. In contrast, rolling up these flimsy ribbons into tubes in a real experiment has not been possible. Theoretical studies conducted by Kit et al. recently demonstrated the tube formation through twisting of graphene nanoribbon, an idea very different from the rolling-up postulation. Here we report the first experimental evidence of a thermally induced self-intertwining of graphene nanoribbons for the preferential synthesis of (7, 2) and (8, 1) tubes within parent-tube templates. Through the tailoring of ribbon’s width and edge, the present finding adds a radically new aspect to the understanding of carbon nanotube formation, shedding much light on not only the future chirality tuning, but also contemporary nanomaterials engineering.

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Section: Methodsmentioning

confidence: 99%

“…By carefully choosing the polycyclic aromatic hydrocarbon precursors, one can, therefore, foresee a controllable tuning of the different chiralities synthesized. With the inner-shell extraction technique developed recently8, precise verification of the CNTs synthesized is also possible through photoluminescence (PL) measurements9.…”

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Growth of carbon nanotubes via twisted graphene nanoribbons

et al. 2013

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“…[11] Carbon nanotubes are effective as nanoreactors to synthesize and contain nanostructures. [18][19][20][21][22][23][24][25][26][27] Carbon nanotubes also serve as narrow and stable one-dimensional cages that protect the enclosed products from degradation under ambient conditions. Herein, we report experimental evidence for the formation of r-P nanostructures,s elf-assembled inside am ultiwalled carbon nanotube (MWCNT).…”

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Assembly of Ring‐Shaped Phosphorus within Carbon Nanotube Nanoreactors

et al. 2017

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A phosphorus allotrope that has not been observed so far, ring-shaped phosphorus consisting of alternate P and P structural units, has been assembled inside multi-walled carbon nanotube nanoreactors with inner diameters of 5-8 nm by a chemical vapor transport and reaction of red phosphorus at 500 °C. The ring-shaped nanostructures with surrounding graphene walls are stable under ambient conditions. The nanostructures were characterized by high-resolution transmission electron microscopy, scanning transmission electron microscopy, energy-dispersive X-ray spectroscopy, Raman scattering, attenuated total reflectance Fourier transform infrared spectroscopy, and X-ray photoelectron spectroscopy.

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“…Analogous to the fabrication of 1D sp 2 CNTs from 0D sp 2 fullerenes [108,109], the diamondoids may also fuse and transform into 1D sp 3 diamond nanowires. Templated growth of these nanowires from 1D diamondoid assemblies confined in CNTs provides a probable pathway through a "face-fused" reaction.…”

Section: Diamond Nanowires From Diamondoidsmentioning

confidence: 98%

Diamond Nanowires: Fabrication, Structure, Properties and Applications

Zhi

2014

Topics in Applied Physics

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Diamond is a wide band gap semiconductor exhibiting a combination of superior properties, such as negative electron affinity, chemical inertness, high Young's modulus, the highest hardness and room-temperature thermal conductivity, etc. It is possible to control and enhance the fundamental properties of diamond by fabricating 1D diamond nanowires, due to the giant surface-to-volume ratio enhancements of 1D nanowires. Although theoretical comparisons with carbon nanotubes have shown that diamond nanowires are energetically and mechanically viable structures, reproducibly synthesizing the crystalline diamond nanowires has remained challenging. In this chapter, we present a comprehensive, up-to-date review for the diamond nanowires, wherein we will give a discussing for their synthesis along with their structures, properties and applications.

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Preferential synthesis and isolation of (6,5) single-wall nanotubes from one-dimensional C60 coalescence

Cited by 32 publications

References 19 publications

Growth of carbon nanotubes via twisted graphene nanoribbons

Growth of carbon nanotubes via twisted graphene nanoribbons

Assembly of Ring‐Shaped Phosphorus within Carbon Nanotube Nanoreactors

Diamond Nanowires: Fabrication, Structure, Properties and Applications

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