نتایج جستجو برای: wall carbon nanotube swcnt

تعداد نتایج: 447809  

2008
Jie Peng Zhibing Li Chunshan He Guihua Chen Weiliang Wang Shaozhi Deng Ningsheng Xu GuanHua Chen Chris J. Edgcombe Richard G. Forbes

A 1 μm long, field emitting, (5,5) single-walled, carbon nanotube (SWCNT) closed with a fullerene cap, and a similar open nanotube with hydrogen-atom termination, have been simulated using the MNDO (Modified Neglect of Diatomic Overlap) quantum-mechanical method. Both contain about 80 000 atoms. It is found that field penetration and band-bending, and various forms of chemically and electricall...

In this paper, free and forced vibration of simply-supported Single-walled carbon nanotube is investigated under the moving nanoparticle by considering nonlocal cylindrical shell model. To validate the theoretical results, modal analysis of nanotube is conducted using ANSYS commercial software. Excellent agreement is exhibited between the results of two different methods. Furthermore, the dynam...

Journal: :Scientific Reports 2021

Abstract We investigated the origin of n-type thermoelectric properties in single-wall carbon nanotube (SWCNT) films with anionic surfactants via experimental analyses and first-principles calculations. Several types were employed to fabricate SWCNT drop-casting, followed by heat treatment at various temperatures. In particular, sodium dodecylbenzene sulfonate (SDBS) surfactant heated 350 °C ex...

یاوری , حشمت اله ,

  By using Greens function method we first show that the effective interaction between two electrons mediated by plasmon exchange can become attractive which in turn can lead to superconductivity at a high critical temperature in a singl wall carbon nanotubes (SWCNT). The superconducting transition temperature Tc for the SWCNT (3,3) obtained by this mechanism agrees with the recent experimental...

Journal: :Nanoscale 2012
Dinushi R Samarajeewa Gregg R Dieckmann Steven O Nielsen Inga H Musselman

The electronic properties of carbon nanotubes can be altered significantly by modifying the nanotube surface. In this study, single-walled carbon nanotubes (SWCNTs) were functionalized noncovalently using designed surfactant peptides, and the resultant SWCNT electronic properties were investigated. These peptides have a common amino acid sequence of X(Valine)(5)(Lysine)(2), where X indicates an...

Journal: :The Analyst 2010
Zhiyuan Zeng Xiaozhu Zhou Xiao Huang Zhijuan Wang Yanli Yang Qichun Zhang Freddy Boey Hua Zhang

Single-walled carbon nanotube (SWCNT) microarrays are successfully patterned on SiO(2) substrates based on an evaporation-induced self-assembly mechanism. On these SWCNT micropatterns, the highly electroactive polycrystalline Pt nanoparticles (PtNPs) are deposited by using the electrochemical method. The obtained PtNP-SWCNT nanocomposites exhibit a low detection limit for hydrogen peroxide (4 m...

Journal: :ACS nano 2011
Di Cao Pei Pang Jin He Tao Luo Jae Hyun Park Predrag Krstic Colin Nuckolls Jinyao Tang Stuart Lindsay

We have constructed devices in which the interior of a single-walled carbon nanotube (SWCNT) field-effect transistor acts as a nanofluidic channel that connects two fluid reservoirs, permitting measurement of the electronic properties of the SWCNT as it is wetted by an analyte. Wetting of the inside of the SWCNT by water turns the transistor on, while wetting of the outside has little effect. T...

Journal: :C 2021

The effects of two types carbon nanotubes, namely multiwall (MWCNT) and single-wall (SWCNT) nanotube, on the thermal mechanical properties acrylonitrile-butadiene-styrene (ABS) nanocomposites, have been investigated. ABS filled-CNT nanocomposites with various filler loadings 5–10 wt% were properly produced by a solvent-free process in blend compounding at 190 °C. Compression moulded plates extr...

Journal: :Advanced Engineering Materials 2022

In the article number 2200357 Tomonaga Ueno, and co-workers report an ultralight single-walled carbon nanotube (SWCNT) aerogel for low-frequency sound absorption, with a hierarchical porous structure high-modulus framework. The Biot–Johnson–Champoux–Allard model indicates significant effect of high elastic modulus SWCNT on absorption.

A. Fereidoon Hosein Hemmatian M. Rajabpour

Carbon nanotube (CNT) is considered as a new generation of material possessing superior mechanical, thermal and electrical properties. The applications of CNT, especially in composite materials, i.e. carbon nanotube reinforced polymer have received great attention and interest in recent years. To characterize the influence of CNT on the stress intensity factor of nanocomposites, three fracture ...

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