Developing high-temperature, CO tolerant polymer electrolyte membrane fuel cells

S. Tulyani, K. T. Adjemian, L. Krishnan, C. Yang, S. Srinivasan, Andrew Bruce Bocarsly, Jay Burton Benziger

Research output: Contribution to journalConference article

Abstract

The introduction of metal oxides into the membrane and the active electrocatalyst layer improved fuel cell performance at elevated temperatures. The structure and properties of these modified membranes were through a combination of water uptake and conductivity experiments as well as small-angle X-ray scattering analysis. In the modification of the electrode membrane interface, 6% by weight of silica provided the best results. Higher silica concentrations led to mass transport problems. The comparison between the Nafion and Nafion composite membrane showed higher uptake by the composite membrane around a relative humidity of 65%. Bragg spacing, which represented the distance between ionic clusters, increased with increasing water content.

Original languageEnglish (US)
Pages (from-to)675-676
Number of pages2
JournalACS Division of Fuel Chemistry, Preprints
Volume47
Issue number2
StatePublished - Aug 1 2002
Event224th ACS National Meeting - Boston, MA, United States
Duration: Aug 18 2002Aug 22 2002

All Science Journal Classification (ASJC) codes

  • Energy(all)

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    Tulyani, S., Adjemian, K. T., Krishnan, L., Yang, C., Srinivasan, S., Bocarsly, A. B., & Benziger, J. B. (2002). Developing high-temperature, CO tolerant polymer electrolyte membrane fuel cells. ACS Division of Fuel Chemistry, Preprints, 47(2), 675-676.