Carbon nanotube-copper composites by electrodeposition on carbon nanotube fibers

Research output: Contribution to journalArticleScientificpeer-review

Standard

Carbon nanotube-copper composites by electrodeposition on carbon nanotube fibers. / Hannula, Pyry Mikko; Peltonen, Antti; Aromaa, Jari; Janas, Dawid; Lundström, Mari; Wilson, Benjamin P.; Koziol, Krzysztof; Forsén, Olof.

In: Carbon, Vol. 107, 10.2016, p. 281-287.

Research output: Contribution to journalArticleScientificpeer-review

Harvard

APA

Vancouver

Author

Bibtex - Download

@article{30ee12018d954ee5ba6ab968e8cfb336,
title = "Carbon nanotube-copper composites by electrodeposition on carbon nanotube fibers",
abstract = "Electrochemical deposition of copper on a carbon nanotube (CNT) fiber from a copper sulfate - sulfuric acid bath was studied in order to produce a carbon nanotube-copper composite wire. The high resistivity of the aerogel-spun fiber causes a non-uniform current distribution during deposition, which results in a drastic drop in the copper nuclei population density as sufficient overpotential is not available beyond a certain distance from the current feed point. Copper was found to fill the pores between CNT bundles from Focused Ion Beam (FIB) cut cross-sections confirming that aqueous based electrolytes can fill micropores between as-spun CNTs in a fiber network. The speed at which copper grows on the fiber surface was identified at ca. 0.08 mm/s with 1 mA applied current. The copper cladding showed columnar growth with a grain size an order of magnitude higher than the CNT-Cu region. The resulting composite was found to have specific conductivity similar to that of pure copper i.e. 98{\%} of copper with 0.2 w-{\%} of CNT, exhibiting a ninefold increase from the pure CNT fiber. Self-annealing was shown to decrease the resistance of the composite.",
author = "Hannula, {Pyry Mikko} and Antti Peltonen and Jari Aromaa and Dawid Janas and Mari Lundstr{\"o}m and Wilson, {Benjamin P.} and Krzysztof Koziol and Olof Fors{\'e}n",
year = "2016",
month = "10",
doi = "10.1016/j.carbon.2016.06.008",
language = "English",
volume = "107",
pages = "281--287",
journal = "Carbon",
issn = "0008-6223",

}

RIS - Download

TY - JOUR

T1 - Carbon nanotube-copper composites by electrodeposition on carbon nanotube fibers

AU - Hannula, Pyry Mikko

AU - Peltonen, Antti

AU - Aromaa, Jari

AU - Janas, Dawid

AU - Lundström, Mari

AU - Wilson, Benjamin P.

AU - Koziol, Krzysztof

AU - Forsén, Olof

PY - 2016/10

Y1 - 2016/10

N2 - Electrochemical deposition of copper on a carbon nanotube (CNT) fiber from a copper sulfate - sulfuric acid bath was studied in order to produce a carbon nanotube-copper composite wire. The high resistivity of the aerogel-spun fiber causes a non-uniform current distribution during deposition, which results in a drastic drop in the copper nuclei population density as sufficient overpotential is not available beyond a certain distance from the current feed point. Copper was found to fill the pores between CNT bundles from Focused Ion Beam (FIB) cut cross-sections confirming that aqueous based electrolytes can fill micropores between as-spun CNTs in a fiber network. The speed at which copper grows on the fiber surface was identified at ca. 0.08 mm/s with 1 mA applied current. The copper cladding showed columnar growth with a grain size an order of magnitude higher than the CNT-Cu region. The resulting composite was found to have specific conductivity similar to that of pure copper i.e. 98% of copper with 0.2 w-% of CNT, exhibiting a ninefold increase from the pure CNT fiber. Self-annealing was shown to decrease the resistance of the composite.

AB - Electrochemical deposition of copper on a carbon nanotube (CNT) fiber from a copper sulfate - sulfuric acid bath was studied in order to produce a carbon nanotube-copper composite wire. The high resistivity of the aerogel-spun fiber causes a non-uniform current distribution during deposition, which results in a drastic drop in the copper nuclei population density as sufficient overpotential is not available beyond a certain distance from the current feed point. Copper was found to fill the pores between CNT bundles from Focused Ion Beam (FIB) cut cross-sections confirming that aqueous based electrolytes can fill micropores between as-spun CNTs in a fiber network. The speed at which copper grows on the fiber surface was identified at ca. 0.08 mm/s with 1 mA applied current. The copper cladding showed columnar growth with a grain size an order of magnitude higher than the CNT-Cu region. The resulting composite was found to have specific conductivity similar to that of pure copper i.e. 98% of copper with 0.2 w-% of CNT, exhibiting a ninefold increase from the pure CNT fiber. Self-annealing was shown to decrease the resistance of the composite.

UR - http://www.scopus.com/inward/record.url?scp=84973531004&partnerID=8YFLogxK

U2 - 10.1016/j.carbon.2016.06.008

DO - 10.1016/j.carbon.2016.06.008

M3 - Article

VL - 107

SP - 281

EP - 287

JO - Carbon

JF - Carbon

SN - 0008-6223

ER -

ID: 4847164