Joining of Carbon Nanotube Fiber by the Meniscus-Confined Electrochemical Deposited Silver

To use carbon nanotube fibers (CNT) extensively in a wide range of electrical and electronic applications, an essential key step is to produce a low-resistance, high-strength and reliable connection between the CNT fibers and other live parts in the circuit. In this study, meniscus-confined electrochemical deposition (ECD) process with silver was proven to be a practical way of joining CNT fibers together head-to-head. The whole ECD process was stable. The shape of the joints was found to depend on the shape of the tips of the CNT fibers. The deposited silver exhibited a dense and uniform microstructure and it was tightly bound to the CNT fibers, with a distinct interface between them. In the ECD process, the original morphology of the CNT network was maintained. The lowest electrical resistance of the CNT fibers joints was measured to be 8.72[Formula: see text][Formula: see text], which is 45% lower than that of the original CNT fibers. The deposited joint sustained a fracture load of 7.5cN with an elongation of 0.4%.

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High-Strength Macroscopic Carbon Nanotube Fiber and Film

Nanotube Superfiber Materials ◽

10.1016/b978-0-12-812667-7.00003-3 ◽

2019 ◽

pp. 65-76 ◽

Cited By ~ 1

Author(s):

Yun Chen ◽

Hang Zhan ◽

Qiang Qiang Shi ◽

Guang Wu ◽

Jian Nong Wang

Keyword(s):

Carbon Nanotube ◽

High Strength ◽

Carbon Nanotube Fiber

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Carbon Nanotube Fiber Pretreatments for Electrodeposition of Copper

Advances in Materials Science and Engineering ◽

10.1155/2018/3071913 ◽

2018 ◽

Vol 2018 ◽

pp. 1-8 ◽

Cited By ~ 3

Author(s):

Pyry-Mikko Hannula ◽

Minttu Junnila ◽

Dawid Janas ◽

Jari Aromaa ◽

Olof Forsén ◽

...

Keyword(s):

Heat Treatment ◽

Carbon Nanotube ◽

Boric Acid ◽

Electrochemical Deposition ◽

Electrochemical Impedance ◽

Copper Deposition ◽

High Resistivity ◽

Active Surface Area ◽

Carbon Nanotube Fiber ◽

Watts Bath

There is increasing interest towards developing carbon nanotube-copper (CNT-Cu) composites due to potentially improved properties. Carbon nanotube macroscopic materials typically exhibit high resistivity, low electrochemical reactivity, and the presence of impurities, which impede its use as a substrate for electrochemical deposition of metals. In this research, different CNT fiber pretreatment methods, such as heat treatment, immersion in Watts bath, anodization, and exposure to boric acid (H3BO3), were investigated to improve the electrochemical response for copper deposition. It was shown that these treatments affect the surface activity of CNTs, including electrical resistivity, polarization resistance, and active surface area, which influence the electrodeposition process of copper. Properties of CNT structures and CNT-Cu composites were researched by electrochemical impedance spectroscopy (EIS), galvanostatic copper deposition, scanning electron microscope (SEM), and four-point electrical resistance measurements. Heat treatment, Watts bath, anodization, and boric acid treatments were shown to be effective for modifying the CNT surface reactivity for subsequent electrochemical deposition of copper.

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High-Strength Carbon Nanotube Fibers Fabricated by Infiltration and Curing of Mussel-Inspired Catecholamine Polymer

Advanced Materials ◽

10.1002/adma.201004228 ◽

2011 ◽

Vol 23 (17) ◽

pp. 1971-1975 ◽

Cited By ~ 156

Author(s):

Seongwoo Ryu ◽

Yuhan Lee ◽

Jae-Won Hwang ◽

Seonki Hong ◽

Chunsoo Kim ◽

...

Keyword(s):

Carbon Nanotube ◽

High Strength ◽

Carbon Nanotube Fibers

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Tuning Array Morphology for High-Strength Carbon-Nanotube Fibers

Small ◽

10.1002/smll.200900954 ◽

2010 ◽

Vol 6 (1) ◽

pp. 132-137 ◽

Cited By ~ 66

Author(s):

Lianxi Zheng ◽

Gengzhi Sun ◽

Zhaoyao Zhan

Keyword(s):

Carbon Nanotube ◽

High Strength ◽

Carbon Nanotube Fibers

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Design of Very High-Strength Aligned and Interconnected Carbon Nanotube Fibers Based on Molecular Dynamics Simulations

2010 DoD High Performance Computing Modernization Program Users Group Conference ◽

10.1109/hpcmp-ugc.2010.38 ◽

2010 ◽

Author(s):

Charles F. Cornwell ◽

Jeffrey B. Allen ◽

Charles P. Marsh ◽

Thomas A. Carlson ◽

Peter B. Stynoski ◽

...

Keyword(s):

Molecular Dynamics ◽

Carbon Nanotube ◽

Molecular Dynamics Simulations ◽

High Strength ◽

Dynamics Simulations ◽

Carbon Nanotube Fibers ◽

Very High

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High-strength and toughness carbon nanotube fiber/resin composites by controllable wet-stretching and stepped pressing

Carbon ◽

10.1016/j.carbon.2021.12.034 ◽

2021 ◽

Author(s):

Qiang Qiang Shi ◽

Hang Zhan ◽

Run Wei Mo ◽

Jian Nong Wang

Keyword(s):

Carbon Nanotube ◽

High Strength ◽

Resin Composites ◽

Carbon Nanotube Fiber ◽

Strength And Toughness

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Fabricating carbon nanotube fiber joints by meniscus-confined electrochemical deposition method

Materials Research Express ◽

10.1088/2053-1591/ab5053 ◽

2019 ◽

Vol 6 (11) ◽

pp. 1150h2

Author(s):

Jianxiang Xu ◽

Sansan Ao ◽

Weidong Liu ◽

Chunfeng Zhao ◽

Kangbai Li ◽

...

Keyword(s):

Carbon Nanotube ◽

Electrochemical Deposition ◽

Deposition Method ◽

Carbon Nanotube Fiber ◽

Electrochemical Deposition Method

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Electrical Properties Enhancement of Carbon Nanotube Yarns by Cyclic Loading

Molecules ◽

10.3390/molecules25204824 ◽

2020 ◽

Vol 25 (20) ◽

pp. 4824

Author(s):

Orli Weizman ◽

Joey Mead ◽

Hanna Dodiuk ◽

Samuel Kenig

Keyword(s):

Electrical Conductivity ◽

Carbon Nanotube ◽

Cyclic Loading ◽

Electrical Resistance ◽

High Performance ◽

High Strength ◽

Intrinsic Properties ◽

Ambient Conditions ◽

Resistance Value ◽

Carbon Nanotube Yarns

Carbon nanotube yarns (CNTYs) possess low density, high conductivity, high strength, and moderate flexibility. These intrinsic properties allow them to be a preferred choice for use as conductive elements in high-performance composites. To fully exploit their potential as conductive reinforcing elements, further improvement in their electrical conductivity is needed. This study demonstrates that tensile cyclic loading under ambient conditions improves the electrical conductivity of two types of CNTYs. The results showed that the electrical resistance of untreated CNTYs was reduced by 80% using cyclic loading, reaching the resistance value of the drawn acid-treated CNTYs. Scanning electron microscopy showed that cyclic loading caused orientation and compaction of the CNT bundles that make up the CNTYs, resulting in significantly improved electrical conductivity of the CNTYs. Furthermore, the elastic modulus was increased by 20% while preserving the tensile strength. This approach has the potential to replace the environmentally unfriendly acid treatment currently used to enhance the conductivity of CNTYs.

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