Thursday, 26 April 2007: 2:00 PM-5:00 PM
Room 343 A (Hilton Americas-Houston)

Topical B: Energy Processes (TB)

#128 - Microstructural Analysis of Proton Exchange Membrane Fuel Cells: Membrane and Catalyst Layer Degradation Mechanisms II (TB014)
This session will cover topics related to the microstructural analysis for membrane and catalyst layer degradation mechanisms for the new generation of materials being developed for direct hydrogen fuel cell components. Papers should focus on 1) individual or combinations of scattering, spectroscopic and microscopic analytical techniques and instrumentation that can provide information on nanoscale changes to the material's structure-property characteristics, 2) new enabling sample preparation protocols, 3) real-time in-situ molecular level observation or control of any changes to the new materials during the component's operation, and 4) how the results of this micro-structural analysis were used to redesign and develop the next generation of materials for practical applications.
Chair:Robert B. Moore
CoChair:Amy L. Manheim
2:00 PMAnalysis of the Physical and Chemical Stability of Cast Nafion® Membranes with Respect to Methanol Solubility and Radical Attack
Shawn J. Osborn, Brady W. Pitts, Kenneth M. Mauritz, Robert B. Moore
2:25 PMSulfonated Perfluorocyclobutyl Polymers and Fluorocarbon Functionalized Carbon for Pem Membranes
Amit Y. Sankhe, Raul S. Hernandez, Mark W. Perpall, Chris M. Topping, S. Suresh, Jianyong Jin, Earl H. Wagener, Stephen Creager, Dennis W. Smith
2:50 PMBroadband Dielectric Spectroscopy Characterization of Chemical Degradation in Nafion®/Silicate Nanocomposite Membranes
Mohammad K. Hassan, Robert B. Moore, Kenneth A. Mauritz
3:15 PMTransport Properties of Supercritical Fluid Processed Proton Exchange Membranes: Methanol Permeability and Proton Conductivity
David Suleiman, Juan C. Pulido, Alba Y. Marrero
3:40 PMSulfonated Block Copolymer Membranes
Dale L. Handlin, Scott R. Trenor

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