Single-walled carbon nanotube/Nafion composites as methanol sensors

Kyongsoo Lee, Jin Woo Lee, Seong Il Kim, Byeong Kwon Ju

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)

Abstract

Single-walled carbon nanotube (SWCNT)/Nafion composite films were fabricated on an interdigitated electrode by using a simple casting method. Nafion acts as a polymer backbone to give stable and homogeneous cast thin films. The potential use of the composites as sensors of methanol concentration in water was investigated. The composites are operative even at ambient temperatures, and respond quickly to concentration changes. The resistance increases significantly with increasing concentration between 0.5 M and 4 M. The composites may be useful as a material to measure the concentration of methanol for direct fuel cells.

Original languageEnglish
Pages (from-to)787-792
Number of pages6
JournalCarbon
Volume49
Issue number3
DOIs
Publication statusPublished - 2011 Mar

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)

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