Exponential decrease of scission length and low tensile strength of bamboo-shaped multi-walled carbon nanotubes under ultrasonication

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Abstract

We report here scission of bamboo-shaped multi-walled carbon nanotubes (BS-MWCNTs) under ultrasonication. As the applied sonication energy increases, mean length of BS-MWCNTs decreases. When sonication energy increases over 500 J/mL, the length of BS-MWCNTs no longer decreases; the limited scission length (L0) is about 1.7 μm for BS-MWCNTs with diameter between 50 and 100 nm. From the L0 of BS-MWCNTs, their tensile strength (σ) is calculated and found to be smaller than that of multi-walled carbon nanotubes (MWCNTs). In addition, exponential decrease of the length of BS-MWCNTs with increasing sonication energy is observed, which is distinguished from typical power law dependence of sonication-induced scission of MWCNTs. These exclusive characteristics in the scission of BS-MWCNTs under ultrasonication are regarded to result from weak binding at discontinuous graphene sheets obtained from forming compartment structures of BS-MWCNTs during growth.

Original languageEnglish
Pages (from-to)507-512
Number of pages6
JournalCurrent Applied Physics
Volume17
Issue number4
DOIs
Publication statusPublished - 2017 Apr 1

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Carbon Nanotubes
Bamboo
tensile strength
cleavage
Carbon nanotubes
Tensile strength
carbon nanotubes
Sonication
Graphite
compartments
Graphene
energy
graphene

Keywords

  • Bamboo-shaped multi-walled carbon nanotubes
  • Sonication-induced scission
  • Tensile strength

ASJC Scopus subject areas

  • Materials Science(all)
  • Physics and Astronomy(all)

Cite this

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title = "Exponential decrease of scission length and low tensile strength of bamboo-shaped multi-walled carbon nanotubes under ultrasonication",
abstract = "We report here scission of bamboo-shaped multi-walled carbon nanotubes (BS-MWCNTs) under ultrasonication. As the applied sonication energy increases, mean length of BS-MWCNTs decreases. When sonication energy increases over 500 J/mL, the length of BS-MWCNTs no longer decreases; the limited scission length (L0) is about 1.7 μm for BS-MWCNTs with diameter between 50 and 100 nm. From the L0 of BS-MWCNTs, their tensile strength (σ∗) is calculated and found to be smaller than that of multi-walled carbon nanotubes (MWCNTs). In addition, exponential decrease of the length of BS-MWCNTs with increasing sonication energy is observed, which is distinguished from typical power law dependence of sonication-induced scission of MWCNTs. These exclusive characteristics in the scission of BS-MWCNTs under ultrasonication are regarded to result from weak binding at discontinuous graphene sheets obtained from forming compartment structures of BS-MWCNTs during growth.",
keywords = "Bamboo-shaped multi-walled carbon nanotubes, Sonication-induced scission, Tensile strength",
author = "Jang, {Jae Won} and Lee, {Cheol Eui} and Lee, {Cheol Jin}",
year = "2017",
month = "4",
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doi = "10.1016/j.cap.2017.01.012",
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journal = "Current Applied Physics",
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T1 - Exponential decrease of scission length and low tensile strength of bamboo-shaped multi-walled carbon nanotubes under ultrasonication

AU - Jang, Jae Won

AU - Lee, Cheol Eui

AU - Lee, Cheol Jin

PY - 2017/4/1

Y1 - 2017/4/1

N2 - We report here scission of bamboo-shaped multi-walled carbon nanotubes (BS-MWCNTs) under ultrasonication. As the applied sonication energy increases, mean length of BS-MWCNTs decreases. When sonication energy increases over 500 J/mL, the length of BS-MWCNTs no longer decreases; the limited scission length (L0) is about 1.7 μm for BS-MWCNTs with diameter between 50 and 100 nm. From the L0 of BS-MWCNTs, their tensile strength (σ∗) is calculated and found to be smaller than that of multi-walled carbon nanotubes (MWCNTs). In addition, exponential decrease of the length of BS-MWCNTs with increasing sonication energy is observed, which is distinguished from typical power law dependence of sonication-induced scission of MWCNTs. These exclusive characteristics in the scission of BS-MWCNTs under ultrasonication are regarded to result from weak binding at discontinuous graphene sheets obtained from forming compartment structures of BS-MWCNTs during growth.

AB - We report here scission of bamboo-shaped multi-walled carbon nanotubes (BS-MWCNTs) under ultrasonication. As the applied sonication energy increases, mean length of BS-MWCNTs decreases. When sonication energy increases over 500 J/mL, the length of BS-MWCNTs no longer decreases; the limited scission length (L0) is about 1.7 μm for BS-MWCNTs with diameter between 50 and 100 nm. From the L0 of BS-MWCNTs, their tensile strength (σ∗) is calculated and found to be smaller than that of multi-walled carbon nanotubes (MWCNTs). In addition, exponential decrease of the length of BS-MWCNTs with increasing sonication energy is observed, which is distinguished from typical power law dependence of sonication-induced scission of MWCNTs. These exclusive characteristics in the scission of BS-MWCNTs under ultrasonication are regarded to result from weak binding at discontinuous graphene sheets obtained from forming compartment structures of BS-MWCNTs during growth.

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KW - Sonication-induced scission

KW - Tensile strength

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