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Effect of air contamination by sulfur dioxide on the high temperature PEM fuel cell

Schonvogel, Dana and Büsselmann, Julian and Wagner, Peter and Kraus, Holger and Misz, Ulrich and Langnickel, Hendrik and Dyck, Alexander (2020) Effect of air contamination by sulfur dioxide on the high temperature PEM fuel cell. International Journal of Hydrogen Energy. Elsevier. doi: 10.1016/j.ijhydene.2020.11.136. ISSN 0360-3199.

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Official URL: http://www.sciencedirect.com/science/article/pii/S0360319920343603


High temperature PEM fuel cells (HT-PEMFCs) are attractive for applications from mobile to stationary fields and are characterized by enhanced tolerances against impurities like carbon monoxide. In this study, consequences of SO2-contaminated air were investigated systematically during 500 h of operation. After supplying 10 ppm SO2 the cathode was evidenced to be exposed to a stronger acidic environment. The bipolar plate showed an acid uptake in the gas outlet region 8 times higher than inside an uncontaminated cell. Furthermore, electrochemical oxidation of SO2 to SO42- was revealed. The catalyst showed a 5 times larger growth of Pt nanoparticles than the reference catalyst of the uncontaminated cell being attributed to larger Pt dissolution at lower pH. Although the cell showed good performance during 500 h, cell components were exposed to more corrosive conditions in presence of SO2. Last, the poisoning was shown to linearly decrease the voltage with decreasing temperatures.

Item URL in elib:https://elib.dlr.de/139367/
Document Type:Article
Additional Information:Die Veröffentlichung erfolgte im Rahmen des Projekts HT-Kathodenluft II.
Title:Effect of air contamination by sulfur dioxide on the high temperature PEM fuel cell
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Schonvogel, Danadana.schonvogel (at) dlr.dehttps://orcid.org/0000-0002-2485-740X
Büsselmann, Julianjulian.buesselmann (at) dlr.dehttps://orcid.org/0000-0003-2197-6056
Wagner, Peterp.wagner (at) dlr.dehttps://orcid.org/0000-0002-5644-9881
Langnickel, Hendrikhendrik.langnickel (at) dlr.deUNSPECIFIED
Dyck, Alexanderalexander.dyck (at) dlr.dehttps://orcid.org/0000-0002-5010-8226
Date:7 December 2020
Journal or Publication Title:International Journal of Hydrogen Energy
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1016/j.ijhydene.2020.11.136
Keywords:High temperature PEM fuel cells, Membrane electrode assembly, Durability, Sulfur dioxide
HGF - Research field:Energy
HGF - Program:Technology, Innovation and Society
HGF - Program Themes:Renewable Energy and Material Resources for Sustainable Futures - Integrating at Different Scales
DLR - Research area:Energy
DLR - Program:E SY - Energy Systems Analysis
DLR - Research theme (Project):E - Energy Systems Technology (old)
Location: Oldenburg
Institutes and Institutions:Institute of Networked Energy Systems > Fuel Cells
Deposited By: Schonvogel, Dr. Dana
Deposited On:09 Dec 2020 18:44
Last Modified:09 Dec 2020 18:44

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