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Conference proceedings

  1. S. Komini Babu, H. T. Chung, G. Wu, P. Zelenay, S. Litster, “Modeling Hierarchical Non-Precious Metal Catalyst Cathodes for PEFCs Using Multi-Scale X-ray CT Imaging,” ECS Transactions, in press, (2014).
  2. M. Burkholder, S. Litster, “The Effect of Cathode Pressure Perturbations on the Voltage Stability of a Simulated Fuel Cell Stack,” ECS Transactions, in press, (2014).
  3. S. Komini Babu, S. Litster, “Vertically-Oriented Polymer Electrolyte Nanofiber Catalyst Support for Fuel Cells,” ECS Transactions 58, pp. 1137-1144 (2013).
  4. P. Mandal, S. Litster, “Morphological analysis of polymer electrolyte fuel cell electrode using high resolution X-ray computed tomography and subsequent performance analysis,” ECS Transactions 58, pp. 481-488 (2013).
  5. M. Burkholder, S. Litster, “Nonlinear Diffusion Analysis of the Voltage Signal of a Polymer Electrolyte Fuel Cell with Cathode Water Accumulation,” ECS Transactions 58, pp. 109-115 (2013).
  6. I.V. Zenyuk, R. Taspinar, A.R. Kalidindi, E.C. Kumbur, S. Litster, “Coupling of deterministic contact mechanics model and two-phase model to study the effect of catalyst layer| microporous layer interface on polymer electrolyte fuel cell performance,” ECS Transactions 58, pp. 1125-1135 (2013). First place in PEFC Symposium Poster Competition.
  7. I.V. Zenyuk, S. Litster, “Spatially-Resolved Modeling of Electric Double Layers for the Oxygen Reduction Reaction in Water-Filled Platinum Electrodes,” ECS Transactions 58, pp. 27-35 (2013).
  8. S.J. An, S. Litster, “In Situ, ionic conductivity measurement of ionomer/binder-free Pt catalyst under fuel cell operating condition,” ECS Transactions 58, pp. 831-839 (2013).
  9. P. Mandal, W.K. Epting, S. Litster, “Nano-scale X-ray Computed Tomography: Morphological Analysis of Fuel Cell Electrodes”, Microscopy and Microanalysis, 19, pp. 630-631 (2013).
  10. M. Burkholder, S. Litster, “Nonlinear analysis of polymer electrolyte fuel cell dynamics with cathode two-phase flow,” Bulletin of the American Physical Society, (2013).
  11. N. Siefert, D. Shekhawat, S. Litster, D. Berry, “Hydrogen and Methane Rich Syngas From a Catalytic Coal Gasifier with in Situ Capture of H2S/CO2 and Ex Situ Regeneration of Catalysts,” AIChE Annual Meeting, Pittsburgh, PA, Oct. 28-Nov. 2, 2012.
  12. M. Burkholder, N. Siefert, S. Litster, “Nonlinear Analysis of Polymer Electrolyte Fuel Cell Voltage Instability Under Flooding Conditions,” AIChE Annual Meeting, Pittsburgh, PA, Oct. 28-Nov. 2, 2012.
  13. K. Hess, J.F. Whitacre, and S. Litster, “In Situ Spatio-Temporal Measurements in Aqueous Hybrid Battery Electrodes ,” AIChE Annual Meeting, Pittsburgh, PA, Oct. 28-Nov. 2, 2012.
  14. I. Zenyuk, S. Litster, “Spatially-Resolved Modeling of Oxygen Reduction Reaction Inside Polymer Electrolyte Fuel Cell Cathode's Water-Filled Mesopore,” AIChE Annual Meeting, Pittsburgh, PA, Oct. 28-Nov. 2, 2012.
  15. W.K. Epting and S. Litster, “Incorporating a Size Distribution and Interfacial Oxygen Resistance Into a PEFC Agglomerate Model,” AIChE Annual Meeting, Pittsburgh, PA, Oct. 28-Nov. 2, 2012.
  16. W.K. Epting and S. Litster, “In-Situ PEFC Oxygen Sensing: An Ultra-Microelectrode Sensor with Oxygen Flux Interrupt Measurements,” AIChE Annual Meeting, Pittsburgh, PA, Oct. 28-Nov. 2, 2012.
  17. K. Hess, J.F. Whitacre, and S. Litster, “In Situ Measurements to Extract Potential, Local Current and Charging Current Distributions in the Electric and Electrolyte Phases of an EDL Capacitance Electrode,” 222nd Meeting of the Electrochemical Society, Honolulu, HI, Oct. 12, 2012.
  18. W.K. Epting and S. Litster, “An Oxygen Flux Interrupt Method and In-situ Micro-sensor for Characterizing Oxygen Transport in PEFCs,” Transactions of the Electrochemical Society, Fall Meeting, Honolulu, HI, Oct. 10, 2012.
  19. M. Burkholder, N. Siefert, S. Litster, “Nonlinear analysis of two-phase flow in polymer electrolyte fuel cell cathode microchannels,” ASME 10th Fuel Cell Science, Engineering and Technology Conference, San Diego, CA, July 23-26, 2012.
  20. N. Siefert, S. Litster, “Exergy & Economic Analysis of Catalytic Coal Gasifiers coupled with Solid Oxide Fuel Cells,” ASME 10th Fuel Cell Science, Engineering and Technology Conference, San Diego, CA, July 23-26, 2012.
  21. S. Litster, K.C. Hess, W.K. Epting, and J. Gelb, “Catalyst layer analysis: Nanoscale X-ray CT, spatially-resolved in-situ microscale diagnostics, and modeling,” Transactions of the Electrochemical Society, Boston, MA, Oct. 10, 2011. [Web]
  22. I. Zenyuk, J.-Y. Lee, and S. Litster, “Modeling ion transport in fuel cell electrodes including water|electrolyte interfaces and electric double layers,” Transactions of the Electrochemical Society, Boston, MA, Oct. 12, 2011. [Web]
  23. N. Siefert, T. McQuain, J.R. Ferrell, S. Litster, D. Shekhawat, D. Berry, “Molten Catalytic Coal Gasification for Methane Rich Syngas,” Pittsburgh Coal Conference, Pittsburgh, PA, Sept. 12-15, 2011.
  24. N. Siefert, D. Bhatnagar, S. Litster, “Exergy & Economic Analysis of Advanced IGCC & IGFC Power Plants with >90% Capture of CO2,” Pittsburgh Coal Conference, Pittsburgh, PA, Sept. 12-15, 2011.
  25. N. Siefert, C. O’Shea, and S. Litster, “The Role of Channel Plurality in Two-phase Flow Instabilities in PEM Cathode Channels,” ASME 9th Fuel Cell Science, Engineering and Technology Conference, Washington, DC, August 7-10, 2011.
  26. N. Siefert and S. Litster, “Exergy and Economic Analysis of Catalytic Coal Gasifiers Coupled with Solid Oxide Fuel Cells,” ASME 9th Fuel Cell Science, Engineering and Technology Conference, Washington, DC, August 7-10, 2011.
  27. W.K. Epting, K.C. Hess, and S. Litster, “In-Situ Measurement of Oxygen Partial Pressure in a Cathode Catalyst Layer,” Transactions of the Electrochemical Society, Las Vegas, NV, Oct. 10-15, 2010. [Web]
  28. K.C. Hess, W.K. Epting, S.-C. Yu, and S. Litster, “In Situ Through-Plane Measurements of Ionic Potential in a PEMFC Catalyst Layer,” Transactions of the Electrochemical Society, accepted, Las Vegas, NV, Oc.t 10-15, 2010. [Web]
  29. K.C. Hess, W.K. Epting, and S. Litster, “Micron-scale Diagnostic for Through-plane Transport Phenomena in Porous Electrodes,” 14th International Heat Transfer Conference, Washington D.C., August 8-13, 2010.
  30. K.C. Hess, W.K. Epting, and S. Litster, “In Situ Measurements of Through-Plane Distributions in Porous Electrodes,” ASME 8th International Conference on Fuel Cell Science, Engineering and Technology, Brooklyn, NY, June 14-16, 2010.
  31. N. Siefert, C.-H. Ho, and S. Litster, “Nonlinear Analysis of Two-Phase Instabilities in PEMFC Parallel-Channel Cathodes,” ASME 8th International Conference on Fuel Cell Science, Engineering and Technology, Brooklyn, NY, June 14-16, 2010.
  32. I. Zenyuk and S. Litster, “The effect of electric double layers on ionic conductivity in the agglomerates of PEM fuel cell anodes,” ASME 8th International Conference on Fuel Cell Science, Engineering and Technology, Brooklyn, NY, June 14-16, 2010.
  33. D. Strickland, D. Fenning, S. Litster, J.G. Santiago, “In Situ Polymerized Wicks for Passive Water Management in PEM Fuel Cell Systems,” Proceedings of the ASME Energy Sustainability Conference, San Francisco, CA, July 18-23, 2009.
  34. F. Kivanc, S. Litster, “Pumping with Electroosmosis of the 2nd Kind in Mesoporous Skeletons,” Proceedings of the 20th Int. Symp. Transport Phenomena, Victoria, BC,  July 7-10, 2009.
  35. S. Litster, B. Ha, D. Kim, and J.G. Santiago, “A Two-Liquid Electroosmotic Pump for Portable Drug Delivery,” Proceedings of the ASME IMECE, Seattle, WA, Nov. 11-15, 2007.
  36. C.R. Buie, S. Litster, and J.G. Santiago, “Physics of Pumping Methanol/Water Solutions for Fuel Cell Applications,” Proceedings of the ASME IMECE, Seattle, WA, November 11 15, 2007.
  37. R. O'Hayre, T. Fabian, S. Litster, F.B. Prinz, and J.G. Santiago, "Passive Air Breathing Fuel Cells For Portable Applications: What are the Limits to Cathode Performance?" Fall meeting of the Materials Research Society, Portable Power Symposium Boston, MA. USA, November 27-December 1, 2006.
  38. S. Litster, A. Bazylak, D. Sinton, and N. Djilali, "Water Transport in Gas Diffusion Layers of PEMFCs," ECS Transactions, vol. 3, pp. 409-414, 2006. 210th Meeting of the Electrochemical Society, Cancun, Mexico, 2006.
  39. S. Litster and N. Djilali, "Performance Analysis of Air-Breathing Fuel Cells," ECS Transactions, vol. 3, pp. 1217, 2006.  210th Meeting of the Electrochemical Society, Cancun, Mexico, 2006. (Best student/post-doc paper award)
  40. R. O'Hayre, T. Fabian, S. Litster, F. B. Prinz, and J. G. Santiago, "Combined Heat and Mass Transfer Model of a Passive Air Breathing Fuel Cell Cathode," ECS Transactions, vol. 3, pp. 1125, 2006. 210th Meeting of the Electrochemical Society, Cancun, Mexico, 2006.
  41. T. Fabian, R. O'Hayre, S. Litster, F. B. Prinz, and J. G. Santiago, "Water Management at the Cathode of a Planar Air-Breathing Fuel Cell with an Electroosmotic Pump," ECS Transactions, vol. 3, pp. 949, 2006. 210th Meeting of the Electrochemical Society, Cancun, Mexico, 2006.
  42. C.R. Buie, S. Litster, D. Kim, and J. G. Santiago, "Free Convection Direct Methonal Fuel Cells Powered by Electroosmotic Pumps," ECS Transactions, vol. 3, pp. 949, 2006. 210th Meeting of the Electrochemical Society, Cancun, Mexico, 2006.
  43. S. Litster , N. Djilali,  J. Pharoah, G. McLean, “Computational Analysis of a Micro-Structured PEMFC Cathode Featuring Nano-Porous Gas Diffusion Media,”  World Hydrogen Technologies Convention 2005, Singapore, Oct 3-5, 2005.
  44. S. Litster and N. Djilali, “An Analytical Model of the Membrane Electrode Assembly in a PEMFC,” Proceedings of ASME’s 3rd International Conference on Fuel Cell Science, Engineering and Technology, May 23-25, 2005.
  45. J.G. Pharoah, S. Litster and N. Djilali, “Mass Transfer Enhancement in Membrane Separation –Rotating vs. Helical Modules,” CFD 2003, Vancouver, May 28-30, 2003.
  46. S. Litster,  J.G. Pharoah and N. Djilali, “Flow And Mass Transfer In Helical Pipes,”  Progress in Transport Phenomena, (Eds. S. Dost, H. Struchtrup and I. Dincer), pp. 133-138, Elsevier, 2002. 13th Int. Symp. Transport Phenomena, Victoria, BC,  July 14-18, 2002.