Effective Transport Properties Accounting for Electrochemical Reactions of Proton-Exchange Membrane Fuel Cell Catalyst Layers

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There has been a rapidly growing interest in three-dimensional micro-structural reconstruction of fuel cell electrodes so as to derive more accurate descriptors of the pertinent geometric and effective transport properties. Due to the limited accessibility of experiments based reconstruction techniques, such as dual-beam focused ion beam-scanning electro microscopy or micro X-Ray computed tomography, within sample micro-structures of the catalyst layers in polymer electrolyte membrane fuel cells (PEMFCs), a particle based numerical model is used in this study to reconstruct sample microstructure of the catalyst layers in PEMFCs. Then the reconstructed sample structure is converted into the computational grid using body-fitted/cut-cell ... continued below

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221-227

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Pharoah, Jon; Choi, Hae-Won; Chueh, Chih-Che & Harvey, David July 1, 2011.

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There has been a rapidly growing interest in three-dimensional micro-structural reconstruction of fuel cell electrodes so as to derive more accurate descriptors of the pertinent geometric and effective transport properties. Due to the limited accessibility of experiments based reconstruction techniques, such as dual-beam focused ion beam-scanning electro microscopy or micro X-Ray computed tomography, within sample micro-structures of the catalyst layers in polymer electrolyte membrane fuel cells (PEMFCs), a particle based numerical model is used in this study to reconstruct sample microstructure of the catalyst layers in PEMFCs. Then the reconstructed sample structure is converted into the computational grid using body-fitted/cut-cell based unstructured meshing technique. Finally, finite volume methods (FVM) are applied to calculate effective properties on computational sample domains.

Physical Description

221-227

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  • Journal Name: ECS Transactions; Journal Volume: 41; Journal Issue: 1; Conference: 220th ECS Meeting & Electrochemical Energy Summit in Boston, Massachusetts, October 9-14, 2011

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  • Report No.: DOE/E0000466-6
  • Grant Number: EE0000466
  • DOI: 10.1149/1.3635556 | External Link
  • Office of Scientific & Technical Information Report Number: 1084691
  • Archival Resource Key: ark:/67531/metadc828057

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  • July 1, 2011

Added to The UNT Digital Library

  • May 19, 2016, 9:45 a.m.

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  • July 22, 2016, 4:29 p.m.

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Pharoah, Jon; Choi, Hae-Won; Chueh, Chih-Che & Harvey, David. Effective Transport Properties Accounting for Electrochemical Reactions of Proton-Exchange Membrane Fuel Cell Catalyst Layers, article, July 1, 2011; United States. (digital.library.unt.edu/ark:/67531/metadc828057/: accessed June 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.