A novel membrane for DMFC - Na 2Ti 3O 7 Nanotubes/Nafion ® composite membrane: Performances studies

Yongsheng Wei, Saif Matar, Liangbo Shen, Xinwei Zhang, Zhijun Guo, Hong Zhu, Hongtan Liu

Research output: Contribution to journalArticle

27 Scopus citations

Abstract

Systematic experiments have been carried out to study the performance of the novel sodium titanate (Na 2Ti 3O 7) nanotube/Nafion ® composite membrane (5 wt% Na 2Ti 3O 7) in a single direct methanol fuel cell (DMFC) at different operating temperatures, methanol concentrations, air flow rates, methanol flow rates, and cathode humidification temperatures. The experimental results showed that the composite membrane outperform pure Nafion ® membranes with the same thickness, Nafion ®112, under all the operating conditions. Furthermore, under some operating conditions, the new composite membranes even outperform Nafion ®117, a much thicker membrane. These experimental results have proved that the new composite membrane is superior to pure Nafion ® membrane in DMFCs and the addition of Na 2Ti 3O 7 nanotubes into Nafion ® is an effective way to improve membrane performances.

Original languageEnglish (US)
Pages (from-to)1857-1864
Number of pages8
JournalInternational Journal of Hydrogen Energy
Volume37
Issue number2
DOIs
StatePublished - Jan 1 2012

Keywords

  • DMFC
  • Methanol cross-over
  • Na Ti O / Nafion composite membrane
  • Sodium titanate nanotubes

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

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