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Modeling of PEMFC Catalyst Layer Performance and Degradation

  • Jeremy P. Meyers
Part of the Topics in Applied Physics book series (TAP, volume 113)

Introduction

The proper construction of a stable, well-dispersed, three-dimensional catalyst layer is one of the most critical determinants of performance for a PEM fuel cell. The membrane isolates the reactants from one another and provides an ionic current path from one electrode to another, and the flow fields and gas-diffusion layers distribute the reactants to the catalyst layer, but all of the relevant electrochemical reactions are carried out in the catalyst layers themselves. It is the proper construction of the so-called three-phase interface that allows the reactants and products to be brought into intimate contact and makes possible the operation of the fuel cell. Indeed, it is the tailoring of this layer by Raistrick et al. [1] in 1991 that demonstrated the practical feasibility of lowering precious metal loadings by a factor of 40 over previous designs and helped to usher in the past decade of increased activity and investment in fuel cell development.

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Keywords

Fuel Cell Oxygen Reduction Reaction Catalyst Layer Porous Electrode Quantum Chemical Simulation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • Jeremy P. Meyers
    • 1
  1. 1.UTC Fuel CellsUSA

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