Results 31 to 40 of about 2,772,284 (400)

Optical Absorption and Raman Spectroscopy Study of the Fluorinated Double-Wall Carbon Nanotubes [PDF]

open access: yes, 2006
Double-wall carbon nanotube (DWNT) samples have been fluorinated at room temperature with varied concentration of a fluorinating agent BrF3. Content of the products estimated from X-ray photoelectron data was equal to CF0.20 and CF0.29 in the case of ...
Bulusheva, Lyubov Gennadievna   +8 more
core   +1 more source

Charge distribution of metallic single walled carbon nanotube–graphene junctions

open access: yesNew Journal of Physics, 2014
We report numeric and analytic calculations of the electrostatic properties for armchair carbon nanotube–graphene junctions. Using a semi-empirical method we first demonstrate that the equilibrium distance between a carbon nanotube and a graphene sheet ...
P T Robert, R Danneau
doaj   +1 more source

Hydrogen Evolution on Hydrophobic Aligned Carbon Nanotube Arrays [PDF]

open access: yes, 2009
We investigate for the first time hydrophobic carbon nanotube-based electrochemical cells as an alternative solution to hydrogen sorting. We show that the electrically conducting surface of the nanotube arrays can be used as a cathode for hydrogen ...
Daraio, Chiara   +2 more
core   +1 more source

Carbon Nanotube Chemical Sensors.

open access: yesChemical Reviews, 2018
Carbon nanotubes (CNTs) promise to advance a number of real-world technologies. Of these applications, they are particularly attractive for uses in chemical sensors for environmental and health monitoring.
V. Schroeder   +4 more
semanticscholar   +1 more source

Effects of structure, purity, and alignment on the heat conduction properties of a nanostructured material comprising carbon nanotubes [PDF]

open access: yesDysona. Applied Science, 2022
The increasing popularity of carbon nanotubes has created a demand for a fundamental understanding of thermal transport characteristics in nanostructured materials.
Junjie Chen
doaj   +1 more source

Linear and nonlinear optical properties of carbon nanotube-coated single-mode optical fiber gratings [PDF]

open access: yes, 2011
This paper was published in OPTICS LETTERS and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://dx.doi.org/10.1364/OL.36.002104.
Benoit Simard   +17 more
core   +2 more sources

Paraconductivity in carbon nanotubes [PDF]

open access: yesPhysical Review B, 2002
We report the calculation of paraconductivity in carbon nanotubes above the superconducting transition temperature. The complex behavior of paraconductivity depending upon the tube radius, temperature and magnetic field strength is analyzed. The results are qualitatively compared with recent experimental observations in carbon nanotubes of an inherent ...
Andrey Varlamov, D. V. Livanov
openaire   +3 more sources

Preparation Methods and Performance Analysis of Polyanthra-Quinone/Carbon Nanotube Composites for Capturing Carbon Dioxide

open access: yesAtmosphere, 2022
Carbon capture is one of the important methods to achieve carbon neutrality. In this paper, a simple and reliable method for the preparation of poly(anthraquinone)/multi-walled carbon nanotube composites (PAQ/MWCNTs) for capturing carbon dioxide is ...
Zhongcheng Wang   +3 more
doaj   +1 more source

Ni -chitosan/carbon nanotube: An efficient biopolymer -inorganic catalyst for selective hydrogenation of acetylene

open access: yesHeliyon, 2023
This work developed an efficient Ni catalyst based on chitosan for selective hydrogenation of acetylene. The Ni catalyst was prepared by the reaction of the chitosan/carbon nanotube composite with NiSO4 solution.
Siye Tang   +3 more
doaj  

Carbon Nanoparticles-Decorated Carbon Nanotubes [PDF]

open access: yesScientific Reports, 2020
AbstractMulti walled carbon nanotubes (MWCNTs) were decorated by activated carbon nanoparticles of resorcinol-formaldehyde aerogels. Carbon nanospheres and MWCNTs were mixed by equal mass ratios for different durations. The products were characterized by Raman spectroscopy, thermal gravimetric analysis, nanoscanning electron microscopy, transmission ...
Ahmed Awadallah-F, Shaheen Al-Muhtaseb
openaire   +5 more sources

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