Characteristics of high-water-uptake activated carbon/Nafion hybrid membranes for proton exchange membrane fuel cells

Hung Chung Chien, Li Duan Tsai, Chien Ming Lai, Jiunn Nan Lin, Chaoyuan Zhu, Feng Chih Chang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

33 Scopus citations

Abstract

A cost-effective and high-throughput method for producing high-water-uptake membranes is developed by combining high-porosity and superior-surface-area activated carbon with Nafion. The resultant activated carbon/Nafion hybrid composite exhibits high water uptake and an improved proton conductivity, which can be exploited in a proton exchange membrane fuel cell (PEMFC). This hybrid membrane displays a superior performance to that of the commercial Nafion 211 when used in fuel-cell measurements. Electrochemical impedance spectroscopy (EIS) is used to simulate the changes in resistance during the operation of the fuel cells and conclusively explains the improved performance of the composite membranes.

Original languageEnglish
Pages (from-to)87-93
Number of pages7
JournalJournal of Power Sources
Volume226
DOIs
StatePublished - 15 Mar 2013

Keywords

  • Activated carbon
  • Nafion
  • Proton exchange membrane fuel cell
  • Water uptake

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