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The influence of CO on the current density distribution of high temperature polymer electrolyte membrane fuel cells

Boaventura, Marta und Sander, Heinz und Brandao, Lucia und Perez, Luis und Friedrich, K. Andreas und Mendes, Adelio (2011) The influence of CO on the current density distribution of high temperature polymer electrolyte membrane fuel cells. In: Proceedigs memory stick. European Fuel Cell Forum 2011, 2011-06-28 - 2011-07-01, Luzern, Schweiz.

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Kurzfassung

In this work, the effect of stepping the CO amount at the anode gas feed from 0.0 % to 1.5 % or 3.0 % on the feed of a high temperature polymer electrolyte membrane fuel cells (HT-PEMFC) is addressed using a PBI/ H3PO4 based MEA. The poisoning was assessed at 160 ºC based on the transient behavior of the fuel cell voltage and current density distribution. The current density distribution at similar voltage and global current density were also compared for pure hydrogen and CO balanced hydrogen. Furthermore, the I-V and power density curves were obtained. Two different cell anodes were used to obtain the current density distribution, 1) a metal segmented flow field and 2) a non-segmented graphite flow field where it was applied a printed circuit board as segmented current collector. The presence of CO caused a performance loss, which was aggravated for higher CO concentrations and higher global current densities. The current density distributions obtained with metal segmented flow field showed that the use of CO balanced hydrogen originated a spatial distribution of CO at the anode, which was more evident for higher CO concentrations and global current densities. On the other hand, no significant change on the current density distribution was observed with the graphite flow field. In this work, the effect of stepping the CO amount at the anode gas feed from 0.0 % to 1.5 % or 3.0 % on the feed of a high temperature polymer electrolyte membrane fuel cells (HT-PEMFC) is addressed using a PBI/ H3PO4 based MEA. The poisoning was assessed at 160 ºC based on the transient behavior of the fuel cell voltage and current density distribution. The current density distribution at similar voltage and global current density were also compared for pure hydrogen and CO balanced hydrogen. Furthermore, the I-V and power density curves were obtained. Two different cell anodes were used to obtain the current density distribution, 1) a metal segmented flow field and 2) a non-segmented graphite flow field where it was applied a printed circuit board as segmented current collector. The presence of CO caused a performance loss, which was aggravated for higher CO concentrations and higher global current densities. The current density distributions obtained with metal segmented flow field showed that the use of CO balanced hydrogen originated a spatial distribution of CO at the anode, which was more evident for higher CO concentrations and global current densities. On the other hand, no significant change on the current density distribution was observed with the graphite flow field.

elib-URL des Eintrags:https://elib.dlr.de/71423/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:The influence of CO on the current density distribution of high temperature polymer electrolyte membrane fuel cells
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Boaventura, MartaFaculdade de Engenharia da Universidade do PortoNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Sander, Heinzheinz.sander (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Brandao, LuciaFaculdade de Engenharia da Universidade do PortoNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Perez, LuisFaculdade de Engenharia da Universidade do PortoNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Friedrich, K. Andreasandreas.friedrich (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Mendes, AdelioFaculdade de Engenharia da Universidade do PortoNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:Juli 2011
Erschienen in:Proceedigs memory stick
Referierte Publikation:Nein
Open Access:Nein
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Herausgeber:
HerausgeberInstitution und/oder E-Mail-Adresse der HerausgeberHerausgeber-ORCID-iDORCID Put Code
Spirig, MichaelNICHT SPEZIFIZIERTNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Bucheli, OlivierNICHT SPEZIFIZIERTNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Status:veröffentlicht
Stichwörter:high temperature polymer fuel cell; CO in H2
Veranstaltungstitel:European Fuel Cell Forum 2011
Veranstaltungsort:Luzern, Schweiz
Veranstaltungsart:internationale Konferenz
Veranstaltungsbeginn:28 Juni 2011
Veranstaltungsende:1 Juli 2011
HGF - Forschungsbereich:Energie
HGF - Programm:Rationelle Energieumwandlung (alt)
HGF - Programmthema:E EV - Energieverfahrenstechnik (alt)
DLR - Schwerpunkt:Energie
DLR - Forschungsgebiet:E EV - Energieverfahrenstechnik
DLR - Teilgebiet (Projekt, Vorhaben):E - Elektrochemische Prozesse (alt)
Standort: Stuttgart
Institute & Einrichtungen:Institut für Technische Thermodynamik > Elektrochemische Energietechnik
Hinterlegt von: Friedrich, Prof.Dr. Kaspar Andreas
Hinterlegt am:08 Nov 2011 10:49
Letzte Änderung:24 Apr 2024 19:37

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