DOI: 10.1002/smll.200900954. Tuning Array Morphology for High‐Strength Carbon‐Nanotube Fibers

Tuning Array Morphology for High‐Strength Carbon‐Nanotube Fibers

10.1002/smll.200900954

Crossref journal-article

Wiley

Small (311)

Abstract

AbstractVertically aligned carbon‐nanotube arrays are synthesized by chemical vapor deposition. Carbon‐nanotube fibers are directly spun from the obtained nanotube arrays and then tested mechanically. A strong correlation between the array morphologies and the mechanical properties of the fibers is observed: well‐aligned arrays yield fibers with much higher performance, while wavy and entangled arrays give poor fiber properties. More importantly, such array morphologies could be controlled by introducing hydrogen or oxygen during the nanotube synthesis. By simply switching the growth condition from 150 ppm oxygen addition to 2% hydrogen addition, the nanotube array changes from the wavy morphology to the well‐aligned morphology, and correspondingly the tensile strength of the resultant fibers could be increased by 4.5 times, from 0.29 GPa for the fibers spun from the oxygen‐assistance‐grown nanotube arrays to 1.3 GPa for the fibers spun from the hydrogen‐assistance‐grown nanotube arrays. The detailed effects of hydrogen and oxygen on the nanotube growth, especially on the growth rate and the array spinnability, are extensively studied. The formation mechanism of the different morphologies of the nanotube arrays and the failure mechanism of the nanotube fibers are also discussed in detail.

Bibliography

Zheng, L., Sun, G., & Zhan, Z. (2009). Tuning Array Morphology for HighâStrength CarbonâNanotube Fibers. Small, 6(1), 132â137. Portico.

Authors 3

Lianxi Zheng (first)
Gengzhi Sun (additional)
Zhaoyao Zhan (additional)

References 33 Referenced 80

Dates

Type	When
Created	15 years, 9 months ago (Nov. 10, 2009, 9:54 a.m.)
Deposited	1 year, 11 months ago (Oct. 7, 2023, 8:50 a.m.)
Indexed	2 months, 1 week ago (June 28, 2025, 12:06 a.m.)
Issued	15 years, 8 months ago (Dec. 28, 2009)
Published	15 years, 8 months ago (Dec. 28, 2009)
Published Online	15 years, 8 months ago (Dec. 28, 2009)
Published Print	15 years, 8 months ago (Jan. 4, 2010)

Funders 0

None

BibTeX

@article{Zheng_2009, title={Tuning Array Morphology for High‐Strength Carbon‐Nanotube Fibers}, volume={6}, ISSN={1613-6829}, url={http://dx.doi.org/10.1002/smll.200900954}, DOI={10.1002/smll.200900954}, number={1}, journal={Small}, publisher={Wiley}, author={Zheng, Lianxi and Sun, Gengzhi and Zhan, Zhaoyao}, year={2009}, month=dec, pages={132–137} }

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