Electrochemical nitration of single-wall carbon nanotubes

Yubing Wang; Sanjay V. Malhotra; Frank J. Owens; Zafar Iqbal

doi:10.1016/j.cplett.2005.03.050

Electrochemical nitration of single-wall carbon nanotubes

Yubing Wang, Sanjay V. Malhotra, Frank J. Owens, Zafar Iqbal

Chemistry and Environmental Science

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

22 Scopus citations

Abstract

Electrochemical nitration of self-assembled single wall carbon nanotube (SWNT) sheets with -NO₂ groups is reported. A SWNT sheet, used as the working electrode in 6 M aqueous solution of potassium nitrite, was anodically oxidized to form -NO₂ groups on the SWNTs. Attenuated-total- reflection Fourier-transform infrared and micro-Raman spectroscopy showed the presence of chemisorbed -NO₂ groups consistent with transmission electron microscope images of the nanotube bundles after functionalization. Approximately 13% weight loss attributed to C-NO₂ bond breaking was measured by thermogravimetry, corresponding to an endothermic dissociation process measured by differential thermal analysis with an onset temperature near 425 °C.

Original language	English (US)
Pages (from-to)	68-72
Number of pages	5
Journal	Chemical Physics Letters
Volume	407
Issue number	1-3
DOIs	https://doi.org/10.1016/j.cplett.2005.03.050
State	Published - May 17 2005

All Science Journal Classification (ASJC) codes

General Physics and Astronomy
Physical and Theoretical Chemistry

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10.1016/j.cplett.2005.03.050

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title = "Electrochemical nitration of single-wall carbon nanotubes",

abstract = "Electrochemical nitration of self-assembled single wall carbon nanotube (SWNT) sheets with -NO2 groups is reported. A SWNT sheet, used as the working electrode in 6 M aqueous solution of potassium nitrite, was anodically oxidized to form -NO2 groups on the SWNTs. Attenuated-total- reflection Fourier-transform infrared and micro-Raman spectroscopy showed the presence of chemisorbed -NO2 groups consistent with transmission electron microscope images of the nanotube bundles after functionalization. Approximately 13% weight loss attributed to C-NO2 bond breaking was measured by thermogravimetry, corresponding to an endothermic dissociation process measured by differential thermal analysis with an onset temperature near 425 °C.",

author = "Yubing Wang and Malhotra, {Sanjay V.} and Owens, {Frank J.} and Zafar Iqbal",

note = "Funding Information: Y.W. and Z.I. thank the Department of the Army, ARDEC (Contract: DAAE30-02-C-1139) for support of this work. ",

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doi = "10.1016/j.cplett.2005.03.050",

language = "English (US)",

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pages = "68--72",

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T1 - Electrochemical nitration of single-wall carbon nanotubes

AU - Wang, Yubing

AU - Malhotra, Sanjay V.

AU - Owens, Frank J.

AU - Iqbal, Zafar

N1 - Funding Information: Y.W. and Z.I. thank the Department of the Army, ARDEC (Contract: DAAE30-02-C-1139) for support of this work.

PY - 2005/5/17

Y1 - 2005/5/17

N2 - Electrochemical nitration of self-assembled single wall carbon nanotube (SWNT) sheets with -NO2 groups is reported. A SWNT sheet, used as the working electrode in 6 M aqueous solution of potassium nitrite, was anodically oxidized to form -NO2 groups on the SWNTs. Attenuated-total- reflection Fourier-transform infrared and micro-Raman spectroscopy showed the presence of chemisorbed -NO2 groups consistent with transmission electron microscope images of the nanotube bundles after functionalization. Approximately 13% weight loss attributed to C-NO2 bond breaking was measured by thermogravimetry, corresponding to an endothermic dissociation process measured by differential thermal analysis with an onset temperature near 425 °C.

AB - Electrochemical nitration of self-assembled single wall carbon nanotube (SWNT) sheets with -NO2 groups is reported. A SWNT sheet, used as the working electrode in 6 M aqueous solution of potassium nitrite, was anodically oxidized to form -NO2 groups on the SWNTs. Attenuated-total- reflection Fourier-transform infrared and micro-Raman spectroscopy showed the presence of chemisorbed -NO2 groups consistent with transmission electron microscope images of the nanotube bundles after functionalization. Approximately 13% weight loss attributed to C-NO2 bond breaking was measured by thermogravimetry, corresponding to an endothermic dissociation process measured by differential thermal analysis with an onset temperature near 425 °C.

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JF - Chemical Physics Letters

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Electrochemical nitration of single-wall carbon nanotubes

Abstract

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