Water transport in Nafion using time-resolved FTIR-ATR spectroscopy Conference Paper uri icon

abstract

  • The hydrogen polymer electrolyte membrane fuel cell is an innovative, environmentally-benign alternative power source with potential for large-market applications, e.g., transportation. The transport of water in Nafion was investigated. The diffusion of molecularly distinct species in the polymer membrane could be independently and simultaneously measured in the presence of a concentration gradient, while simultaneously monitoring changes in intermolecular interactions. The ability to monitor separate molecular diffusing species revealed new underlying transport mechanisms. The dynamic and equilibrium state of each species and its relationship to water sorption, water diffusivity, and proton conductivity were discussed. This is an abstract of a paper presented at the 2007 AIChE Annual Meeting (Salt Lake City, UT 11/4-9/2007).

published proceedings

  • 2007 AIChE Annual Meeting

author list (cited authors)

  • Hallinan, D. T., & Elabd, Y. A.

complete list of authors

  • Hallinan, DT||Elabd, YA

publication date

  • December 2007