Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/209571
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Assessment of the durability of low-cost Al bipolar plates for High Temperature PEM fuel cells |
Autor: | Alegre Gresa, Cinthia CSIC ORCID; Álvarez Manuel, Laura CSIC ORCID; Mustata, Radu CSIC ORCID; Valiño García, Luis CSIC ORCID; Lozano Fantoba, Antonio CSIC ORCID; Barreras Toledo, Félix CSIC ORCID | Palabras clave: | High temperature PEM fuel cell Aluminum bipolar plates Ni-P coating MEA degradation Stress test |
Fecha de publicación: | 17-may-2019 | Editor: | Elsevier | Citación: | International Journal of Hydrogen Energy 44(25): 12748-12759 (2019) | Resumen: | The present research aims to assess the durability of a single cell formed by a commercial high-temperature membrane electrode assembly (MEA) and Al bipolar plates (Al-BPPs) coated with Ni-P. To this end, an accelerated degradation test based on voltage load cycles is carried out, and the effects of the degradation on the MEA and its impact on the Al-coated bipolar plates are analyzed. They are compared with the results obtained testing a similar cell formed by the same MEA with graphite plates. MEAs from both cells were analyzed by different characterization techniques before and after the degradation tests (XRD, SEM, TEM). The performance of the Al-based cell is initially better, but it suffers a faster deterioration mainly due to the degradation of the Ni-P surface coating. A green deposit is formed, probably due to the chemical reaction of the phosphoric acid leached from the MEA. These deposits cause an increase in the contact resistance of the plates, local channel blockages and, eventually, a larger degradation. This work proves that PBI membranes still need to be improved to ensure their long-term durability. | Versión del editor: | https://doi.org/10.1016/j.ijhydene.2018.07.070 | URI: | http://hdl.handle.net/10261/209571 | DOI: | 10.1016/j.ijhydene.2018.07.070 | ISSN: | 0360-3199 |
Aparece en las colecciones: | (LIFTEC) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
Alegre-Hydrogen_Energy-2018.pdf | 2,41 MB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
31
checked on 20-abr-2024
WEB OF SCIENCETM
Citations
25
checked on 29-feb-2024
Page view(s)
162
checked on 23-abr-2024
Download(s)
279
checked on 23-abr-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.