High-strength carbon nanotube fibers by twist-induced self-strengthening

Shang, Yuanyuan; Wang, Ying; Li, Shuhui; Chun-Fei, Hua; Zou, Mingchu; Cao, Anyuan

doi:10.1016/j.carbon.2017.03.101

Cited by 68 publications

(49 citation statements)

References 33 publications

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“…Electrons can rapidly hop from one CNT to adjacent ones based on the 3D hopping conduction model, which are effectively transported along the axial direction of the fiber . The CNT fibers exhibited an electrical conductivity in the range of 10 4 –10 5 S m −1 and a tensile strength up to 3 GPa . Chemical doping could be used to further enhance the electrical conductivity.…”

Section: Fabrication Of Multifunctional Fibersmentioning

confidence: 99%

Multifunctional Fibers to Shape Future Biomedical Devices

Zhang

Ding

et al. 2019

Adv Funct Materials

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Fiber-based configurations are highly desirable for wearable and implantable biomedical devices due to their unique properties, such as ultra-flexibility, weavability, minimal invasiveness, and tissue adaptability. Recent developments have focused on the fabrication of fibrous devices with multiple biomedical functions, such as noninvasively or minimally invasively monitoring of physiological signals, delivering drugs, transplanting cells, and recording and stimulating nerves. In this Review, the recent progress of these multifunctional fiber-based devices in terms of their composite materials, fabrication techniques, structural designs, device-tissue interfaces, and biomedical applications is carefully described. The remaining challenges and future directions in this emerging and exciting research field are also highlighted.

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Section: Fabrication Of Multifunctional Fibersmentioning

confidence: 99%

Multifunctional Fibers to Shape Future Biomedical Devices

Zhang

Ding

et al. 2019

Adv Funct Materials

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“…They found that the continuous fibers can only be drawn out from super‐aligned CNT arrays. This has motivated research to improve either the spinnability of CNT arrays, which is related to their morphology, or the electrical and mechanical properties by enhancing the interconnections between neighboring CNTs, which involves various in situ or ex situ treatments 27,38b,44,63…”

Section: Carbon Nanotube Assemblies For the Use Of Electrical Conductorsmentioning

confidence: 99%

Carbon‐Nanotube‐Based Electrical Conductors: Fabrication, Optimization, and Applications

Zhang

Nguyen

Leonhardt

et al. 2019

Adv Elect Materials

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and environmentally friendly conductive cables or wires as a replacement for copper. From this view, carbon-based nanomaterial is a potential candidate.Carbon related nanomaterials including fullerenes, carbon nanotubes (CNTs), and graphene are promising due to their exceptional conductive and electronic transport properties, which may accelerate the practical and potential applications for various kinds of novel engineering areas spanning from electronics, energy storage, and advanced materials to nanotechnology and biotechnology. Among the family of carbon nanomaterials, CNTs have been a particularly attractive material since its discovery in 1991 by Iijima, [1] due to their nanoscale 1D shape, excellent mechanical properties, tunable electrical properties either metallic or semiconducting, high current carrying capacity, and many other exciting properties. These properties have highlighted the potential of CNTs use in a plethora of applications, including electrically conductive fillers in polymer composites, flexible and transparent conductive films, microelectronics (transistors, interconnectors, heat dissipaters), and lightweight conducting wires and cables. [2] Figure 1 points out the forecast presented by Endo et al. [3] on the present, near future, and long term applications of CNTs in various fields. An interesting potential application of CNTs is the long-term electrical conductors, which are able to transmit power from plants to plants or households, as well as be used in electronic devices.Compared to conventional copper cables or wires, CNT based cables have several advantages including 1) a lower density of 1.3 g cm −3 for single-walled carbon nanotubes (SWCNTs) [4] and 2.1 g cm −3 for multiwalled carbon nanotubes (MWCNTs), [5] both of which are much lower than that of copper, 8.96 g cm −3 ; [6] 2) environmental stability, which can stand with severe conditions including high pressure, large temperature changes, etc.; 3) excellent mechanical performance with a Young's modulus and strength in the ranges of 1.0 TPa and 50 GPa, respectively; [7] 4) ultrahigh electrical conductivity as high as 10 8 S m −1 for SWCNTs, which is higher than that of copper (≈10 7 S m −1 )). [8] Furthermore, the limited amount of conventional conductive metal resources in nature and their soaring market price greatly increased the need for a desirable alternative solution that are abundant in nature, low-cost, andThe lack of progress to obtain commercially available large-scale production of continuous carbon nanotube (CNT) fibers has provided the motivation for researchers to develop high-performance bulk CNT assemblies that could more effectively transfer the superb mechanical, electrical, and other excellent properties of individual CNTs. These wire-like bulk assemblies of CNTs have demonstrated the potential for being used as electrical conductors to replace conventional conductive materials, such as copper and aluminum. CNT conductors are extremely lightweight, corrosive-resistive, and mechanically strong while being ...

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“…Unfortunately, for CNT fibers, all these properties are not used up to ≈10%. For example, the tensile strength for a meter‐long CNT fiber was just ≈3–5.5 GPa (there have also been short samples as strong as ≈10 GPa), the electrical conductivity for a neat CNT fiber was up to 4.6 × 10 5 –2.9 × 10 6 S m −1 , (a special case was up to 8.5 × 10 6 S m −1 just for a segment of CNT fiber), and the thermal conductivity was several hundred W m −1 K −1 even for the apparent value (with considering the contribution of thermal diffusion) …”

Section: Introductionmentioning

confidence: 99%

Understanding the Mechanical and Conductive Properties of Carbon Nanotube Fibers for Smart Electronics

et al. 2019

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The development of fiber‐based smart electronics has provoked increasing demand for high‐performance and multifunctional fiber materials. Carbon nanotube (CNT) fibers, the 1D macroassembly of CNTs, have extensively been utilized to construct wearable electronics due to their unique integration of high porosity/surface area, desirable mechanical/physical properties, and extraordinary structural flexibility, as well as their novel corrosion/oxidation resistivity. To take full advantage of CNT fibers, it is essential to understand their mechanical and conductive properties. Herein, the recent progress regarding the intrinsic structure–property relationship of CNT fibers, as well as the strategies of enhancing their mechanical and conductive properties are briefly summarized, providing helpful guidance for scouting ideally structured CNT fibers for specific flexible electronic applications.

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High-strength carbon nanotube fibers by twist-induced self-strengthening

Cited by 68 publications

References 33 publications

Multifunctional Fibers to Shape Future Biomedical Devices

Multifunctional Fibers to Shape Future Biomedical Devices

Carbon‐Nanotube‐Based Electrical Conductors: Fabrication, Optimization, and Applications

Understanding the Mechanical and Conductive Properties of Carbon Nanotube Fibers for Smart Electronics

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