Nafion based solid-state gas sensors: Pt/Nafion electrodes prepared by a Takenata-Torikai method in sensing oxygen

Bing Joe Hwang, Yu Chuan Liu, Yue Lang Chen

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4 Citations (Scopus)

Abstract

The influences of the reductant concentration of NaBH4 and the quantity of Pt loading on the active surface area and the sensitivity of the Pt/Nafion electrodes prepared by a Takenata-Torikai method in detecting oxygen were investigated in this study. The sensitivities of Pt/Nafion electrodes prepared in 0.06 N NaBH4 increase non-linearly from 0.0242 to 0.106 μA/cm2 ppm with increasing Pt loadings from 2.59 to 7.76 mg/cm2. However, The sensitivities per unit Pt loading show a maximum at Pt loading of 5.20 mg/cm2. A sensing model was also proposed to illustrate the sensing phenomenon.

Original languageEnglish
Pages (from-to)303-309
Number of pages7
JournalJournal of the Chinese Institute of Chemical Engineers
Volume30
Issue number4
Publication statusPublished - Jul 1999
Externally publishedYes

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Keywords

  • Pt/Nafion
  • Sensitivity
  • Takenata-Torikai method

ASJC Scopus subject areas

  • Chemical Engineering(all)

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