Equilibrium structures and flows of polar and nonpolar liquids and their mixtures in carbon nanotubes with rectangular cross sections

Incorporating the nanoscale properties of carbon nanotubes (CNTs) and their assemblies into macroscopic materials is at the forefront of scientific innovation. The electrical conductivity, chemical inertness, and large aspect ratios of these cylindrical structures make them ideal electrode materials for electrochemical studies. The ability to assemble CNTs into nano-, micro-, and macroscale materials broadens their field of applications. Here, we report the fabrication of random arrays of CNT cross-sections and their performance as nanoelectrode ensembles (NEEs). Single ribbons of drawable CNTs were employed to create the CNT-NEEs that allows easier fabrication of nanoscale electrodes for general electrochemical applications. Surface analysis of the prepared NEEs using scanning electron microscopy showed a random distribution of CNTs within the encapsulating polymer. Electrochemical testing via cyclic voltammetry and scanning electrochemical cell microscopy revealed voltametric differences from the typical macroelectrode response with the steady-state nature of NEEs. Finally, when the NEE was employed for Pb2+ detection using square-wave anodic stripping voltammetry, a limit of detection of 0.57 ppb with a linear range of 10–35 ppb was achieved.

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Technology of Strengthening the Supporting Zones of the Glued-Wood Beaming Structure with the Application of Nanomodified Prepregs

Materials Science Forum ◽

10.4028/www.scientific.net/msf.931.226 ◽

2018 ◽

Vol 931 ◽

pp. 226-231 ◽

Cited By ~ 2

Author(s):

Svetlana I. Roschina ◽

Mikhail S. Lisyatnikov ◽

Mikhail V. Lukin ◽

Marina V. Popova

Keyword(s):

Mechanical Properties ◽

Carbon Nanotubes ◽

Technological Process ◽

Cross Sections ◽

Wood Structure ◽

Adhesive Compositions ◽

Wood Beams

The article is devoted to the investigation of the technology of the wood-glued structures manufacture with strengthening the supporting zones by a prepreg on the basis of the fiberglass and the glued oligomer with the addition of the carbon nanotubes (CNTs). The peculiarities of the wooden beams cross-sections have been presented. The main types of fiberglass have been reviewed. The article describes strengthening the supporting zones of wooden and glued-wood beams. The method of nanoparticles application in adhesive compositions to improve their physical mechanical properties has been considered. The technological process of manufacturing the glued-wood structure and its strengthening has been developed.

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Directly Measured Optical Absorption Cross Sections for Structure-Selected Single-Walled Carbon Nanotubes

Nano Letters ◽

10.1021/nl404791y ◽

2014 ◽

Vol 14 (3) ◽

pp. 1530-1536 ◽

Cited By ~ 56

Author(s):

Jason K. Streit ◽

Sergei M. Bachilo ◽

Saunab Ghosh ◽

Ching-Wei Lin ◽

R. Bruce Weisman

Keyword(s):

Carbon Nanotubes ◽

Optical Absorption ◽

Cross Sections ◽

Single Walled Carbon Nanotubes ◽

Absorption Cross ◽

Single Walled Carbon ◽

Walled Carbon Nanotubes

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Electromagnetic Wave Interactions with 2D Arrays of Single-Wall Carbon Nanotubes

Journal of Nanomaterials ◽

10.1155/2011/709263 ◽

2011 ◽

Vol 2011 ◽

pp. 1-7 ◽

Cited By ~ 1

Author(s):

Taha A. Elwi ◽

Hussain M. Al-Rizzo

Keyword(s):

Carbon Nanotubes ◽

Cross Sections ◽

Single Wall Carbon Nanotubes ◽

Wave Interactions ◽

Impedance Boundary ◽

Frequency Regime ◽

2D Arrays ◽

Visible Frequency ◽

Electromagnetic Wave Interactions ◽

Walled Carbon Nanotubes

We report, for the first time, the scattering, absorption, and reflection characteristics of 2D arrays of finite-length, armchair, single-walled carbon nanotubes (SWNTs) in the visible frequency regime. The analysis is based on the Finite-Element-Method formulation of Maxwell's equations and a 3D quantum electrical conductivity function. Three geometrical models have been considered: solid cylinder, hollow cylinder, and honeycomb. We demonstrate that classical electromagnetic theory is sufficient to evaluate the scattering and absorption cross sections of SWNTs, which revealed excellent agreement against measurements without the need to invoke the effective impedance boundary conditions. The solid and hollow cylindrical models fail to provide accurate results, whenbothscattering and absorption are considered. Finally, it is shown that reflection and transmission characteristics of both individual and arrays of SWNTs, which are essential for solar cell applications, are strongly influenced by the length and the phenomenological parameters of the SWNT.

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