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Publikováno v:
Applied Surface Science. 257:9403-9406
We demonstrate that the quality of the as-grown single-walled carbon nanotubes (SWCNTs) can be effectively improved by the addition of the B ingredient in the Fe/MgO catalyst. The as-grown SWCNTs were characterized by scanning electron microscopy (SE
Publikováno v:
Carbon Trends, Vol 5, Iss, Pp 100119-(2021)
Nanocomposites of isotactic polypropylene loaded by various amounts of vapor-grown carbon nanotubes ranging from 0 to 20% wt. were obtained by extrusion. Raman investigations on these nanocomposites are reported. The nanocomposites were irradiated us
Autor:
Teja Roch, O. Jost, Andrés Fabián Lasagni, Gianaurelio Cuniberti, Esther Roch Talens, Andreas Leson, Aljoscha Roch, Eckhard Beyer, Bert Kaiser
Publikováno v:
Diamond and Related Materials. 45:70-75
Single wall carbon nanotubes (SWCNT) synthesized using mass production methods such as pulsed arc deposition consist of a mixture of metallic and semiconducting nanotubes. In this work, we report on an approach for the selective removal of either met
Publikováno v:
Polymer Degradation and Stability. 97:1405-1414
Multi-walled carbon nanotubes (MWCNT) were coated by polyaniline (PANI) in situ during the oxidation of aniline with ammonium peroxydisulfate in a mixture of ethanol (50 vol.%)–water. PANI alone and PANI-coated MWCNT were carbonized under nitrogen
Publikováno v:
Carbon. 46:1530-1534
A quantitative method to evaluate the degree of dispersion of single-walled carbon nanotubes (SWCNTs), produced by the high-pressure carbon monoxide process, was developed using Raman spectroscopy and atomic force microscopy (AFM). Nanotubes were dis
Autor:
Marcel Lucas, Robert J. Young
Publikováno v:
Composites Science and Technology. 67:2135-2149
The physical properties of single-walled carbon nanotubes (SWNTs) depend strongly upon their structure and so a reliable method to determine this structure is essential to their future applications. Resonant Raman spectroscopy has proven to be a powe
Autor:
Evaldo José Corat, Anderson Oliveira Lobo, Airton Abrahão Martin, E.F. Antunes, C. Veríssimo, Vladimir Jesus Trava-Airoldi
Publikováno v:
Carbon. 44:2202-2211
Comparative studies of first- and second-order Raman spectra of multi-walled carbon nanotubes (MWCNT) and three other graphitic materials – carbon fiber, powdered graphite and highly ordered pyrolytic graphite – are reported. Three laser excitati
Autor:
Marcel Lucas, Robert J. Young
Publikováno v:
Composites Science and Technology. 64:2297-2302
In this report, the radial breathing modes (RBMs) intensities of single-walled carbon nanotubes (SWNTs) have been investigated by Raman spectroscopy. Epoxy composite samples with 0.025 wt% SWNT were subjected to deformation using four-point bending t