Systematic Investigations of Annealing and Functionalization of Carbon Nanotube Yarns

Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry
Maik ScholzSilke Hampel

Abstract

Carbon nanotube yarns (CNY) are a novel carbonaceous material and have received a great deal of interest since the beginning of the 21st century. CNY are of particular interest due to their useful heat conducting, electrical conducting, and mechanical properties. The electrical conductivity of carbon nanotube yarns can also be influenced by functionalization and annealing. A systematical study of this post synthetic treatment will assist in understanding what factors influences the conductivity of these materials. In this investigation, it is shown that the electrical conductivity can be increased by a factor of 2 and 5.5 through functionalization with acids and high temperature annealing respectively. The scale of the enhancement is dependent on the reducing of intertube space in case of functionalization. For annealing, not only is the highly graphitic structure of the carbon nanotubes (CNT) important, but it is also shown to influence the residual amorphous carbon in the structure. The promising results of this study can help to utilize CNY as a replacement for common materials in the field of electrical wiring.

References

Dec 12, 2001·Physical Review Letters·P KimP L McEuen
Jul 26, 2008·Nature Nanotechnology·Seunghun Hong, Sung Myung
Nov 7, 2009·Nature Nanotechnology·Virginia A DavisMatteo Pasquali
Oct 10, 2013·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Anthony P PierlotJeffrey S Church
Aug 30, 2017·Physical Chemistry Chemical Physics : PCCP·Ben McLeanAlister J Page

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Citations

Jan 14, 2021·Advanced Science·Alexander Corletto, Joseph G Shapter
Jul 20, 2021·Advanced Materials·John S BulmerJames A Elliott

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Methods Mentioned

BETA
chemical vapor deposition
X-ray

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