On the catalytic role of MWCNTs for the electroreduction of NO gas in an acid solution

Chia-Yu Lin; Kuo Chuan Ho

doi:10.1063/1.3156527

On the catalytic role of MWCNTs for the electroreduction of NO gas in an acid solution

Chia-Yu Lin, Kuo Chuan Ho

Department of Chemical Engineering

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

Abstract

The poly(3,4-ethylenedioxythiophene)/multi-wall carbon nanotubes (PEDOT/MWCNTs) modified screenprinted carbon electrodes (SPCEs) were fabricated and their catalytic properties towards nitric oxide (NO) gas, evolved via the disproportion reaction of nitrite in an acid solution, were studied. The thicker the PEDOT film was, the higher the peak current density (J_pc) was observed. However, further increase in the thickness of PEDOT (> 2 layers) would decrease the J_pc. Moreover, as the loading of the MWCNTs was increased, the peak potential for NO reduction shifted to more positive direction due to the promoted electron transfer by adding MWCNTs. Besides, due to the larger amount of the protonated nitrite ions in the acid solution, the sensitivity of the PEDOT/MWCNTs-modified SPCEs was enhanced at lower solution pH.

Original language	English
Title of host publication	Olfaction and Electronic Nose - Proceedings of the 13th International Symposium on Olfaction and Electronic Nose, ISOEN
Pages	288-289
Number of pages	2
DOIs	https://doi.org/10.1063/1.3156527
Publication status	Published - 2009 Nov 27
Event	13th International Symposium on Olfaction and Electronic Nose, ISOEN - Brescia, Italy Duration: 2009 Apr 15 → 2009 Apr 17

Publication series

Name	AIP Conference Proceedings
Volume	1137
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Other

Other	13th International Symposium on Olfaction and Electronic Nose, ISOEN
Country/Territory	Italy
City	Brescia
Period	09-04-15 → 09-04-17

All Science Journal Classification (ASJC) codes

Ecology, Evolution, Behavior and Systematics
Ecology
Plant Science
Physics and Astronomy(all)
Nature and Landscape Conservation

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10.1063/1.3156527

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title = "On the catalytic role of MWCNTs for the electroreduction of NO gas in an acid solution",

abstract = "The poly(3,4-ethylenedioxythiophene)/multi-wall carbon nanotubes (PEDOT/MWCNTs) modified screenprinted carbon electrodes (SPCEs) were fabricated and their catalytic properties towards nitric oxide (NO) gas, evolved via the disproportion reaction of nitrite in an acid solution, were studied. The thicker the PEDOT film was, the higher the peak current density (Jpc) was observed. However, further increase in the thickness of PEDOT (> 2 layers) would decrease the Jpc. Moreover, as the loading of the MWCNTs was increased, the peak potential for NO reduction shifted to more positive direction due to the promoted electron transfer by adding MWCNTs. Besides, due to the larger amount of the protonated nitrite ions in the acid solution, the sensitivity of the PEDOT/MWCNTs-modified SPCEs was enhanced at lower solution pH.",

author = "Chia-Yu Lin and Ho, {Kuo Chuan}",

year = "2009",

month = nov,

day = "27",

doi = "10.1063/1.3156527",

language = "English",

isbn = "9780735406742",

series = "AIP Conference Proceedings",

pages = "288--289",

booktitle = "Olfaction and Electronic Nose - Proceedings of the 13th International Symposium on Olfaction and Electronic Nose, ISOEN",

note = "13th International Symposium on Olfaction and Electronic Nose, ISOEN ; Conference date: 15-04-2009 Through 17-04-2009",

}

Lin, C-Y & Ho, KC 2009, On the catalytic role of MWCNTs for the electroreduction of NO gas in an acid solution. in Olfaction and Electronic Nose - Proceedings of the 13th International Symposium on Olfaction and Electronic Nose, ISOEN. AIP Conference Proceedings, vol. 1137, pp. 288-289, 13th International Symposium on Olfaction and Electronic Nose, ISOEN, Brescia, Italy, 09-04-15. https://doi.org/10.1063/1.3156527

On the catalytic role of MWCNTs for the electroreduction of NO gas in an acid solution. / Lin, Chia-Yu; Ho, Kuo Chuan.

Olfaction and Electronic Nose - Proceedings of the 13th International Symposium on Olfaction and Electronic Nose, ISOEN. 2009. p. 288-289 (AIP Conference Proceedings; Vol. 1137).

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

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N2 - The poly(3,4-ethylenedioxythiophene)/multi-wall carbon nanotubes (PEDOT/MWCNTs) modified screenprinted carbon electrodes (SPCEs) were fabricated and their catalytic properties towards nitric oxide (NO) gas, evolved via the disproportion reaction of nitrite in an acid solution, were studied. The thicker the PEDOT film was, the higher the peak current density (Jpc) was observed. However, further increase in the thickness of PEDOT (> 2 layers) would decrease the Jpc. Moreover, as the loading of the MWCNTs was increased, the peak potential for NO reduction shifted to more positive direction due to the promoted electron transfer by adding MWCNTs. Besides, due to the larger amount of the protonated nitrite ions in the acid solution, the sensitivity of the PEDOT/MWCNTs-modified SPCEs was enhanced at lower solution pH.

AB - The poly(3,4-ethylenedioxythiophene)/multi-wall carbon nanotubes (PEDOT/MWCNTs) modified screenprinted carbon electrodes (SPCEs) were fabricated and their catalytic properties towards nitric oxide (NO) gas, evolved via the disproportion reaction of nitrite in an acid solution, were studied. The thicker the PEDOT film was, the higher the peak current density (Jpc) was observed. However, further increase in the thickness of PEDOT (> 2 layers) would decrease the Jpc. Moreover, as the loading of the MWCNTs was increased, the peak potential for NO reduction shifted to more positive direction due to the promoted electron transfer by adding MWCNTs. Besides, due to the larger amount of the protonated nitrite ions in the acid solution, the sensitivity of the PEDOT/MWCNTs-modified SPCEs was enhanced at lower solution pH.

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On the catalytic role of MWCNTs for the electroreduction of NO gas in an acid solution

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