Effect of water content in the gas diffusion layer of H2 O2 PEM fuel cell

The heart of a fuel cell is the membrane-electrode assembly consisting of two porous electrodes, where the electrochemical reactions take place, and the ionomer conductive membrane, which allows the proton exchange from the anode to the cathode. The porosity of the electrodes plays an important role...

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Detalles Bibliográficos
Autores principales: Cespedes, German, Asteazaran, Mariano, Castro Luna, Ana
Formato: Artículo publishedVersion
Lenguaje:Inglés
Publicado: Journal of Materials Science and Engineering 2017
Materias:
fuel cells; porous-electrodes; electrode flooding
Acceso en línea:http://hdl.handle.net/20.500.12272/2623
Aporte de:
RIA - Repositorio Institucional Abierto (UTN) de Universidad Tecnológica Nacional
id I68-R174-20.500.12272-2623
record_format dspace
institution Universidad Tecnológica Nacional
institution_str I-68
repository_str R-174
collection RIA - Repositorio Institucional Abierto (UTN)
language Inglés
topic fuel cells; porous-electrodes; electrode flooding
spellingShingle fuel cells; porous-electrodes; electrode flooding
Cespedes, German
Asteazaran, Mariano
Castro Luna, Ana
Effect of water content in the gas diffusion layer of H2 O2 PEM fuel cell
topic_facet fuel cells; porous-electrodes; electrode flooding
description The heart of a fuel cell is the membrane-electrode assembly consisting of two porous electrodes, where the electrochemical reactions take place, and the ionomer conductive membrane, which allows the proton exchange from the anode to the cathode. The porosity of the electrodes plays an important role in the fuel cell performance. One of the drawbacks presented by the porous electrodes is the accumulation of water in their structure, which implies a hindrance for the reactive gas transport to reach the catalytic reactive sites. In this paper, a mathematical model of a porous electrode, assuming single pores with uniform distribution, is introduced to determine the influence of water accumulation in the electrode on the fuel cell performance under different operating conditions. It is demonstrated that at low current densities, water accumulation has no effect in the fuel cell behavior, whereas at high current densities its performance is severely affected.
format Artículo
publishedVersion
Artículo
author Cespedes, German
Asteazaran, Mariano
Castro Luna, Ana
author_facet Cespedes, German
Asteazaran, Mariano
Castro Luna, Ana
author_sort Cespedes, German
title Effect of water content in the gas diffusion layer of H2 O2 PEM fuel cell
title_short Effect of water content in the gas diffusion layer of H2 O2 PEM fuel cell
title_full Effect of water content in the gas diffusion layer of H2 O2 PEM fuel cell
title_fullStr Effect of water content in the gas diffusion layer of H2 O2 PEM fuel cell
title_full_unstemmed Effect of water content in the gas diffusion layer of H2 O2 PEM fuel cell
title_sort effect of water content in the gas diffusion layer of h2 o2 pem fuel cell
publisher Journal of Materials Science and Engineering
publishDate 2017
url http://hdl.handle.net/20.500.12272/2623
work_keys_str_mv AT cespedesgerman effectofwatercontentinthegasdiffusionlayerofh2o2pemfuelcell
AT asteazaranmariano effectofwatercontentinthegasdiffusionlayerofh2o2pemfuelcell
AT castrolunaana effectofwatercontentinthegasdiffusionlayerofh2o2pemfuelcell
bdutipo_str Repositorios
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