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Probing and Mapping Electrode Surfaces in Solid Oxide Fuel Cells
15:08

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Published on: September 20, 2012

Engineering porous materials for fuel cell applications.

N P Brandon1, D J Brett

  • 1Faculty of Engineering, Imperial College London, South Kensington campus, London SW7 2AZ, UK. n.brandon@imperial.ac.uk

Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
|February 15, 2008
PubMed
Summary

Porous materials are crucial for fuel cell performance, impacting membrane support, gas diffusion, and electrode function. This paper explores their engineering, materials, and processing for solid oxide and polymer electrolyte membrane fuel cells.

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Chemical Engineering

Background:

  • Porous materials are essential components in fuel cell technology.
  • Key properties include mechanical integrity, gas diffusivity, electronic conductivity, and ionic conductivity.
  • These properties are critical for supporting membranes, gas diffusion layers, and electrodes.

Purpose of the Study:

  • To discuss the critical characteristics of porous materials in fuel cells.
  • To introduce materials and processing methods for engineering these porous components.
  • To focus on two leading fuel cell types: solid oxide fuel cells and polymer electrolyte membrane fuel cells.

Main Methods:

  • Review of porous material characteristics relevant to fuel cell function.
  • Discussion of material selection and processing techniques.
  • Comparative analysis within solid oxide fuel cells and polymer electrolyte membrane fuel cells.

Main Results:

  • Porous materials significantly influence fuel cell efficiency and durability.
  • Specific material properties are optimized for different fuel cell components (membranes, diffusion layers, electrodes).
  • Tailored processing methods are key to achieving desired porous material performance.

Conclusions:

  • Effective engineering of porous materials is vital for advancing fuel cell technology.
  • Understanding material properties and processing is crucial for developing high-performance fuel cells.
  • This work provides insights into porous material applications in solid oxide and polymer electrolyte membrane fuel cells.