Methanol concentration sensitive SWCNT/Nafion composites

Kyongsoo Lee, Seong Il Kim, Byeong Kwon Ju

Research output: Contribution to journalArticle

Abstract

An aqueous methanol sensor for use in direct methanol fuel cells (DMFCs) applications is demonstrated; the methanol sensor is built using dispersed single-walled carbon nanotubes (SWCNTs) with Nafion117 solution to detect the methanol concentration in water. The study is aimed at the potential use of the carbon nanotubes array as a methanol sensor for direct methanol fuel cells (DMFCs). The concentration of methanol in the fuel circulation loop of a DMFC system is an important operating parameter, because it determines the electrical performance and efficiency of the fuel cell system. The sensor is also operative even at ambient temperatures and responds quickly to changes in the concentration levels of the methanol. Such a sensor can be easily incorporated into the methanol fuel solution flow loop in the DMFC system.

Original languageEnglish
Pages (from-to)408-410
Number of pages3
JournalWorld Academy of Science, Engineering and Technology
Volume50
Publication statusPublished - 2011 Feb 1

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Keywords

  • Methanol concentration
  • Nafion composites
  • SWCNT

ASJC Scopus subject areas

  • Engineering(all)

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