Ex-situ characterisation of gas diffusion layers for proton exchange membrane fuel cells

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Ex-situ characterisation of gas diffusion layers for proton exchange membrane fuel cells. / El-Kharouf, Ahmad; Mason, Thomas J.; Brett, Dan J L; Pollet, Bruno G.

In: Journal of Power Sources, Vol. 218, 15.11.2012, p. 393-404.

Research output: Contribution to journalReview articlepeer-review

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El-Kharouf, Ahmad ; Mason, Thomas J. ; Brett, Dan J L ; Pollet, Bruno G. / Ex-situ characterisation of gas diffusion layers for proton exchange membrane fuel cells. In: Journal of Power Sources. 2012 ; Vol. 218. pp. 393-404.

Bibtex

@article{481ac6fac62c456b8f772f3bb550421c,
title = "Ex-situ characterisation of gas diffusion layers for proton exchange membrane fuel cells",
abstract = "This paper presents the first part of a complete ex-situ characterisation of a wide range of commercial Gas Diffusion Layers (GDLs) used in low temperature and high temperature Proton Exchange Membrane (PEM) fuel cells. Physical and electrical characteristics of the GDLs are reported. The results show that the substrate structure has a significant effect on the mechanical and electrical properties of the GDL. Moreover, the Micro Porous Layer (MPL) structure determines the roughness of the surface, and affects the permeability and porosity of the GDL. It was found that the substrate treatment with PTFE affects the GDL characteristics; PTFE loading increases the GDLs hydrophobicity and permeability, however, decreases its overall porosity and resistivity. Adding a MPL to the substrate, results in a decrease in porosity and permeability and an increase in resistivity. The contact resistance of the GDL and the bipolar plate increases when the GDL thickness and PTFE loading are increased. This technical paper shows a close relationship between GDL materials and their physical characteristics and highlights the importance of optimising GDLs for fuel cell applications.",
keywords = "Ex-situ characterization, GDL, MPL, PEM fuel cell",
author = "Ahmad El-Kharouf and Mason, {Thomas J.} and Brett, {Dan J L} and Pollet, {Bruno G.}",
year = "2012",
month = nov,
day = "15",
doi = "10.1016/j.jpowsour.2012.06.099",
language = "English",
volume = "218",
pages = "393--404",
journal = "Journal of Power Sources",
issn = "0378-7753",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Ex-situ characterisation of gas diffusion layers for proton exchange membrane fuel cells

AU - El-Kharouf, Ahmad

AU - Mason, Thomas J.

AU - Brett, Dan J L

AU - Pollet, Bruno G.

PY - 2012/11/15

Y1 - 2012/11/15

N2 - This paper presents the first part of a complete ex-situ characterisation of a wide range of commercial Gas Diffusion Layers (GDLs) used in low temperature and high temperature Proton Exchange Membrane (PEM) fuel cells. Physical and electrical characteristics of the GDLs are reported. The results show that the substrate structure has a significant effect on the mechanical and electrical properties of the GDL. Moreover, the Micro Porous Layer (MPL) structure determines the roughness of the surface, and affects the permeability and porosity of the GDL. It was found that the substrate treatment with PTFE affects the GDL characteristics; PTFE loading increases the GDLs hydrophobicity and permeability, however, decreases its overall porosity and resistivity. Adding a MPL to the substrate, results in a decrease in porosity and permeability and an increase in resistivity. The contact resistance of the GDL and the bipolar plate increases when the GDL thickness and PTFE loading are increased. This technical paper shows a close relationship between GDL materials and their physical characteristics and highlights the importance of optimising GDLs for fuel cell applications.

AB - This paper presents the first part of a complete ex-situ characterisation of a wide range of commercial Gas Diffusion Layers (GDLs) used in low temperature and high temperature Proton Exchange Membrane (PEM) fuel cells. Physical and electrical characteristics of the GDLs are reported. The results show that the substrate structure has a significant effect on the mechanical and electrical properties of the GDL. Moreover, the Micro Porous Layer (MPL) structure determines the roughness of the surface, and affects the permeability and porosity of the GDL. It was found that the substrate treatment with PTFE affects the GDL characteristics; PTFE loading increases the GDLs hydrophobicity and permeability, however, decreases its overall porosity and resistivity. Adding a MPL to the substrate, results in a decrease in porosity and permeability and an increase in resistivity. The contact resistance of the GDL and the bipolar plate increases when the GDL thickness and PTFE loading are increased. This technical paper shows a close relationship between GDL materials and their physical characteristics and highlights the importance of optimising GDLs for fuel cell applications.

KW - Ex-situ characterization

KW - GDL

KW - MPL

KW - PEM fuel cell

UR - http://www.scopus.com/inward/record.url?scp=84864824037&partnerID=8YFLogxK

U2 - 10.1016/j.jpowsour.2012.06.099

DO - 10.1016/j.jpowsour.2012.06.099

M3 - Review article

AN - SCOPUS:84864824037

VL - 218

SP - 393

EP - 404

JO - Journal of Power Sources

JF - Journal of Power Sources

SN - 0378-7753

ER -