Nafion, which to date is the best membrane material for polymer electrolyte membrane fuel cells, limits the operating temperature of the cell to under 90°C. A study on the interaction between TiO2 nanoparticles and Nafion in TiO2 composite membranes was carried out to discover how TiO2 nanoparticles interact with Nafion and if the size or surface characteristics of the particles effects this interaction. Sonication resulted in better dispersion of particles (loss of sulfonate groups over a narrower temperature range) and that using isopropanol in place of dimethyl sulfoxide produced membranes with less interaction between particles and polymer. This is an abstract of a paper presented ACS Fuel Chemistry Meeting (Washington, DC Fall 2005).
|Number of pages
|ACS Division of Fuel Chemistry, Preprints
|Published - Dec 1 2005
All Science Journal Classification (ASJC) codes
- General Energy