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

Jae Won Jang; Cheol Eui Lee; Cheol Jin Lee

doi:10.1016/j.cap.2017.01.012

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

Jae Won Jang, Cheol Eui Lee, Cheol Jin Lee

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

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 language	English
Pages (from-to)	507-512
Number of pages	6
Journal	Current Applied Physics
Volume	17
Issue number	4
DOIs	https://doi.org/10.1016/j.cap.2017.01.012
Publication status	Published - 2017 Apr 1

Bibliographical note

Funding Information:
This work was supported by a Research Grant of Pukyong National University (2015Year).

Publisher Copyright:
© 2017 Elsevier B.V.

Keywords

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

ASJC Scopus subject areas

Materials Science(all)
Physics and Astronomy(all)

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10.1016/j.cap.2017.01.012

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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}",

note = "Funding Information: This work was supported by a Research Grant of Pukyong National University (2015Year). Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

year = "2017",

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doi = "10.1016/j.cap.2017.01.012",

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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.

KW - Bamboo-shaped multi-walled carbon nanotubes

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KW - Tensile strength

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

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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