Interaction between carbonaceous structure and functionalized single-walled carbon nanotubes

Jung Ah Lee; Byung Chul Lee; Sang Myung Lee; Kyeong Kap Paek; Byeong Kwon Ju; Yun Hi Lee; Hyun Joon Shin

doi:10.1149/1.3355946

Interaction between carbonaceous structure and functionalized single-walled carbon nanotubes

Jung Ah Lee, Byung Chul Lee, Sang Myung Lee, Kyeong Kap Paek, Byeong Kwon Ju, Yun Hi Lee, Hyun Joon Shin

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

6 Citations (Scopus)

Abstract

The properties of functionalized single-walled carbon nanotube (f-SWCNT) supernatant samples obtained through steps of acid oxidation-centrifugation- decantation were characterized by spectroscopic tools. Fourier transform IR spectroscopy provided evidence for the chemical and structural variations generated on the f-SWCNTs within each supernatant sample. The results from UV-visible near-IR spectroscopy revealed that the density difference of the carbonaceous impurity with functional groups on the f-SWCNTs contributed to the attenuation of electrical conductivity. In the Raman results, the shift of frequency in the radial breathing mode (RBM) was associated with an increase in diameter of the f-SWCNTs and a decrease in RBM intensity was attributed to the depletion of valence band electrons. The redshift of the tangential mode indicates the reduction in the bandgaps of the f-SWCNTs by the decrease in carbonaceous impurity.

Original language	English
Pages (from-to)	K131-K137
Journal	Journal of the Electrochemical Society
Volume	157
Issue number	6
DOIs	https://doi.org/10.1149/1.3355946
Publication status	Published - 2010

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Renewable Energy, Sustainability and the Environment
Surfaces, Coatings and Films
Electrochemistry
Materials Chemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1149/1.3355946

Cite this

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title = "Interaction between carbonaceous structure and functionalized single-walled carbon nanotubes",

abstract = "The properties of functionalized single-walled carbon nanotube (f-SWCNT) supernatant samples obtained through steps of acid oxidation-centrifugation- decantation were characterized by spectroscopic tools. Fourier transform IR spectroscopy provided evidence for the chemical and structural variations generated on the f-SWCNTs within each supernatant sample. The results from UV-visible near-IR spectroscopy revealed that the density difference of the carbonaceous impurity with functional groups on the f-SWCNTs contributed to the attenuation of electrical conductivity. In the Raman results, the shift of frequency in the radial breathing mode (RBM) was associated with an increase in diameter of the f-SWCNTs and a decrease in RBM intensity was attributed to the depletion of valence band electrons. The redshift of the tangential mode indicates the reduction in the bandgaps of the f-SWCNTs by the decrease in carbonaceous impurity.",

author = "Lee, {Jung Ah} and Lee, {Byung Chul} and Lee, {Sang Myung} and Paek, {Kyeong Kap} and Ju, {Byeong Kwon} and Lee, {Yun Hi} and Shin, {Hyun Joon}",

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doi = "10.1149/1.3355946",

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volume = "157",

pages = "K131--K137",

journal = "Journal of the Electrochemical Society",

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publisher = "Electrochemical Society, Inc.",

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T1 - Interaction between carbonaceous structure and functionalized single-walled carbon nanotubes

AU - Lee, Jung Ah

AU - Lee, Byung Chul

AU - Lee, Sang Myung

AU - Paek, Kyeong Kap

AU - Ju, Byeong Kwon

AU - Lee, Yun Hi

AU - Shin, Hyun Joon

PY - 2010

Y1 - 2010

N2 - The properties of functionalized single-walled carbon nanotube (f-SWCNT) supernatant samples obtained through steps of acid oxidation-centrifugation- decantation were characterized by spectroscopic tools. Fourier transform IR spectroscopy provided evidence for the chemical and structural variations generated on the f-SWCNTs within each supernatant sample. The results from UV-visible near-IR spectroscopy revealed that the density difference of the carbonaceous impurity with functional groups on the f-SWCNTs contributed to the attenuation of electrical conductivity. In the Raman results, the shift of frequency in the radial breathing mode (RBM) was associated with an increase in diameter of the f-SWCNTs and a decrease in RBM intensity was attributed to the depletion of valence band electrons. The redshift of the tangential mode indicates the reduction in the bandgaps of the f-SWCNTs by the decrease in carbonaceous impurity.

AB - The properties of functionalized single-walled carbon nanotube (f-SWCNT) supernatant samples obtained through steps of acid oxidation-centrifugation- decantation were characterized by spectroscopic tools. Fourier transform IR spectroscopy provided evidence for the chemical and structural variations generated on the f-SWCNTs within each supernatant sample. The results from UV-visible near-IR spectroscopy revealed that the density difference of the carbonaceous impurity with functional groups on the f-SWCNTs contributed to the attenuation of electrical conductivity. In the Raman results, the shift of frequency in the radial breathing mode (RBM) was associated with an increase in diameter of the f-SWCNTs and a decrease in RBM intensity was attributed to the depletion of valence band electrons. The redshift of the tangential mode indicates the reduction in the bandgaps of the f-SWCNTs by the decrease in carbonaceous impurity.

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DO - 10.1149/1.3355946

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JF - Journal of the Electrochemical Society

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Interaction between carbonaceous structure and functionalized single-walled carbon nanotubes

Abstract

ASJC Scopus subject areas

UN SDGs

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