Study of thermal and mechanical properties of composites based on arc-grown carbon nanotubes and heat-resistant cyanoether binder

Okotrub, A. V.; Yudanov, N. F.; Aleksashin, V. M.; Bulusheva, L. G.; Komarova, Olga; Kostas, U. O.; Гевко, П. Н.; Antyufeeva, N. V.; Ilchenko, S.I.; Gunyaev, G. M.

doi:10.1134/s0965545x07060119

Cited by 8 publications

(3 citation statements)

References 8 publications

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“…In order to allow the CNTs to form the stable suspensions in water and to clean the CNTs from the glassy carbon nanoparticles, the as-synthesized material was chemically purified as described elsewhere. 15 As a result of the oxidation of multiwalled CNTs in a solution of KMnO 4 in a concentrated sulfuric acid (H 2 SO 4 , the oxygen-containing groups were formed on the carbon surface, those ensured the formation of a colloidal solution of CNTs in the water. 16 A deposition of carbon nanotubes was carried out using FeCl 3 solution.…”

Section: Methodsmentioning

confidence: 99%

Application of Nonlinear Light Scattering in Nanocarbon Suspensions for Adjustment of Laser Pulse Duration

Vanyukov¹,

Mogileva²,

Mikheev³

et al. 2012

Journal of Nanoelectronics and Optoelectronics

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It is shown that the scanning an optical cell containing the aqueous suspension of multiwalled carbon nanotubes with the focused laser beam along the optical axis leads to an increase of the nonlinear scattering. This is accompanied by a smooth change of the nanosecond laser pulse duration transmitted through the suspension. A pulse shortening occurs as the cell approaching the beam waist due to cutting off the trailing part of the incident laser pulse. Thus the full width at half maximum of the transmitted laser pulse through suspension decreases with the increase of the incident laser power density. In experiments the incident YAG: Nd 3+-laser passive Q-switched pulses of 16 ns duration have been smoothly adjusted in the range of 16-10 ns.

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Section: Methodsmentioning

confidence: 99%

Application of Nonlinear Light Scattering in Nanocarbon Suspensions for Adjustment of Laser Pulse Duration

Vanyukov¹,

Mogileva²,

Mikheev³

et al. 2012

Journal of Nanoelectronics and Optoelectronics

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“…For example, the electric and thermal conductivity and mechanical properties of arc-prepared nanotubes are one to two orders of magnitude better than those for CVD-grown CNTs [11]. Although arc-prepared CNTs have these many merits, they cannot be prepared on a large scale compared with CVD-grown CNTs which been commercialized production, resulting in limits severely their applications.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of straight multi-walled carbon nanotubes by arc discharge in air and their field emission properties

Zhao

Liu

et al. 2012

J Mater Sci

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The possibility of preparing straight multiwalled carbon nanotubes (MWCNTs) on a large scale is demonstrated using direct current arc discharge with a rotating graphite anode in low pressure air. The process is time-saving, economical, and non-hazardous. It is found that the optimum air pressure for the highest yield of MWCNTs is about 60 Torr. Investigation of the internal organization of the cathode deposit reveals that many columns about 40 lm in diameter are closely packed and mechanically stable. The highest content of MWCNTs is found in the intercolumnar spaces between columns. Emitters made of the cathode deposits that contain a large number of straight nanotubes exhibit outstanding field emission properties. The turn-on electric field decreases from 1.44 to 0.93 V/lm and the field enhancement factor b increases from about 3,190 to 7,830 only after simple burning at 750°C for 30 min in air. The results indicate that MWCNTs prepared by arc discharge in air are promising for field emission application.

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“…Carbon nanotubes (CNTs) are excellent materials with outstanding mechanical properties of a large specific surface area and excellent thermal stability. − CNTs with a one-dimensional graphitic nanochannel structure are of particular interest as building blocks for new generation membranes . Majumder et al verified that the transport of liquids (water and alkanes) through the aligned CNT membrane was orders of magnitude faster than conventional hydrodynamic flow .…”

mentioning

confidence: 99%

Tuned Fabrication of the Aligned and Opened CNT Membrane with Exceptionally High Permeability and Selectivity for Bioalcohol Recovery

et al. 2018

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Synthetic membranes usually suffer from a ubiquitous trade-off between permeability and selectivity. Carbon nanotube (CNT)-based hybrid materials have shown attractive properties in high-performance membrane preparation; however, the aggregation of random CNTs in polymer remains a great challenge. Herein, the aligned and open-ended CNT/(polydimethylsiloxane) PDMS membranes are controllably fabricated to form a hamburger-like structure that possesses nanochannels (∼10 nm) in the intermediate layer as well as angstrom cavities in the embedded PDMS. These aligned CNT membranes surpass the filling content limitation of the nonaligned CNT/PDMS membrane (37.4 wt % versus ∼10 wt %), leading to excellent mechanical properties and a multiplying performance increase of mass flux and selectivity for the separation of alcohols. The membranes break the permeability-selectivity trade-off with both parameters remarkably increasing (maximum 9 times) for bioalcohol separation. The established pervaporative-ultrafiltration mechanism indicates that the penetrant molecules preferentially pass through CNT internal nanochannels with increasing membrane permeability, thereby paving a way to nanoscale design of highly efficient channeled membranes for separation application.

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Study of thermal and mechanical properties of composites based on arc-grown carbon nanotubes and heat-resistant cyanoether binder

Cited by 8 publications

References 8 publications

Application of Nonlinear Light Scattering in Nanocarbon Suspensions for Adjustment of Laser Pulse Duration

Application of Nonlinear Light Scattering in Nanocarbon Suspensions for Adjustment of Laser Pulse Duration

Synthesis of straight multi-walled carbon nanotubes by arc discharge in air and their field emission properties

Tuned Fabrication of the Aligned and Opened CNT Membrane with Exceptionally High Permeability and Selectivity for Bioalcohol Recovery

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