Effect of chemical oxidation on the gas sensing properties of multi-walled carbon nanotubes

M. Xu; Z. Sun; Q. Chen; B. K. Tay

doi:10.1109/INEC.2008.4585453

Effect of chemical oxidation on the gas sensing properties of multi-walled carbon nanotubes

M. Xu, Z. Sun, Q. Chen, B. K. Tay

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The effect of chemical oxidation on the gas sensing properties of multi-walled carbon nanotubes (MWNT) is presented in this paper. The MWNT was chemically oxidized in a mixture of concentrated sulfuric and nitric acids. The oxidation time was varied from 4 to 12 hours. X-ray photoelectron spectroscopy (XPS) was used to study effect on the chemical composition of the nanotube surface. The MWNT was deposited onto gas sensor substrate by drop coating method. The gas sensing properties of samples with different oxidation time for NO₂ and NH₃ were investigated at room temperature. Comparing with the as-obtained MWNT, the gas sensitivity of functionalized MWNT was greatly increased for both NO₂ and NH₃.

Original language	English
Title of host publication	2008 2nd IEEE International Nanoelectronics Conference, INEC 2008
Pages	130-133
Number of pages	4
DOIs	https://doi.org/10.1109/INEC.2008.4585453
Publication status	Published - 2008
Externally published	Yes
Event	2008 2nd IEEE International Nanoelectronics Conference, INEC 2008 - Shanghai, China Duration: Mar 24 2008 → Mar 27 2008

Publication series

Name	2008 2nd IEEE International Nanoelectronics Conference, INEC 2008

Conference

Conference	2008 2nd IEEE International Nanoelectronics Conference, INEC 2008
Country/Territory	China
City	Shanghai
Period	3/24/08 → 3/27/08

ASJC Scopus Subject Areas

Electrical and Electronic Engineering

Access to Document

10.1109/INEC.2008.4585453

Cite this

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title = "Effect of chemical oxidation on the gas sensing properties of multi-walled carbon nanotubes",

abstract = "The effect of chemical oxidation on the gas sensing properties of multi-walled carbon nanotubes (MWNT) is presented in this paper. The MWNT was chemically oxidized in a mixture of concentrated sulfuric and nitric acids. The oxidation time was varied from 4 to 12 hours. X-ray photoelectron spectroscopy (XPS) was used to study effect on the chemical composition of the nanotube surface. The MWNT was deposited onto gas sensor substrate by drop coating method. The gas sensing properties of samples with different oxidation time for NO2 and NH3 were investigated at room temperature. Comparing with the as-obtained MWNT, the gas sensitivity of functionalized MWNT was greatly increased for both NO2 and NH3.",

author = "M. Xu and Z. Sun and Q. Chen and Tay, \{B. K.\}",

year = "2008",

doi = "10.1109/INEC.2008.4585453",

language = "English",

isbn = "9781424415731",

series = "2008 2nd IEEE International Nanoelectronics Conference, INEC 2008",

pages = "130--133",

booktitle = "2008 2nd IEEE International Nanoelectronics Conference, INEC 2008",

note = "2008 2nd IEEE International Nanoelectronics Conference, INEC 2008 ; Conference date: 24-03-2008 Through 27-03-2008",

}

Xu, M, Sun, Z, Chen, Q & Tay, BK 2008, Effect of chemical oxidation on the gas sensing properties of multi-walled carbon nanotubes. in 2008 2nd IEEE International Nanoelectronics Conference, INEC 2008., 4585453, 2008 2nd IEEE International Nanoelectronics Conference, INEC 2008, pp. 130-133, 2008 2nd IEEE International Nanoelectronics Conference, INEC 2008, Shanghai, China, 3/24/08. https://doi.org/10.1109/INEC.2008.4585453

Effect of chemical oxidation on the gas sensing properties of multi-walled carbon nanotubes. / Xu, M.; Sun, Z.; Chen, Q. et al.
2008 2nd IEEE International Nanoelectronics Conference, INEC 2008. 2008. p. 130-133 4585453 (2008 2nd IEEE International Nanoelectronics Conference, INEC 2008).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Effect of chemical oxidation on the gas sensing properties of multi-walled carbon nanotubes

AU - Xu, M.

AU - Sun, Z.

AU - Chen, Q.

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N2 - The effect of chemical oxidation on the gas sensing properties of multi-walled carbon nanotubes (MWNT) is presented in this paper. The MWNT was chemically oxidized in a mixture of concentrated sulfuric and nitric acids. The oxidation time was varied from 4 to 12 hours. X-ray photoelectron spectroscopy (XPS) was used to study effect on the chemical composition of the nanotube surface. The MWNT was deposited onto gas sensor substrate by drop coating method. The gas sensing properties of samples with different oxidation time for NO2 and NH3 were investigated at room temperature. Comparing with the as-obtained MWNT, the gas sensitivity of functionalized MWNT was greatly increased for both NO2 and NH3.

AB - The effect of chemical oxidation on the gas sensing properties of multi-walled carbon nanotubes (MWNT) is presented in this paper. The MWNT was chemically oxidized in a mixture of concentrated sulfuric and nitric acids. The oxidation time was varied from 4 to 12 hours. X-ray photoelectron spectroscopy (XPS) was used to study effect on the chemical composition of the nanotube surface. The MWNT was deposited onto gas sensor substrate by drop coating method. The gas sensing properties of samples with different oxidation time for NO2 and NH3 were investigated at room temperature. Comparing with the as-obtained MWNT, the gas sensitivity of functionalized MWNT was greatly increased for both NO2 and NH3.

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EP - 133

BT - 2008 2nd IEEE International Nanoelectronics Conference, INEC 2008

T2 - 2008 2nd IEEE International Nanoelectronics Conference, INEC 2008

Y2 - 24 March 2008 through 27 March 2008

ER -

Effect of chemical oxidation on the gas sensing properties of multi-walled carbon nanotubes

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