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

Chia-Yu Lin, Kuo Chuan Ho

Research output: Chapter in Book/Report/Conference proceedingConference 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 (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.

Original languageEnglish
Title of host publicationOlfaction and Electronic Nose - Proceedings of the 13th International Symposium on Olfaction and Electronic Nose, ISOEN
Pages288-289
Number of pages2
DOIs
Publication statusPublished - 2009 Nov 27
Event13th International Symposium on Olfaction and Electronic Nose, ISOEN - Brescia, Italy
Duration: 2009 Apr 152009 Apr 17

Publication series

NameAIP Conference Proceedings
Volume1137
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other13th International Symposium on Olfaction and Electronic Nose, ISOEN
CountryItaly
CityBrescia
Period09-04-1509-04-17

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All Science Journal Classification (ASJC) codes

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

Cite this

Lin, C-Y., & Ho, K. C. (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 (pp. 288-289). (AIP Conference Proceedings; Vol. 1137). https://doi.org/10.1063/1.3156527