Schonvogel, Dana and Büsselmann, Julian and Schmies, Henrike and Langnickel, Hendrik and Wagner, Peter and Dyck, Alexander (2021) Impact of air contamination by NOx on the performance of high temperature PEM fuel cells. International Journal of Hydrogen Energy, 46 (68), pp. 33934-33947. Elsevier. doi: 10.1016/j.ijhydene.2021.07.211. ISSN 0360-3199.
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Official URL: https://www.sciencedirect.com/science/article/pii/S0360319921029682
Abstract
High temperature PEM fuel cells show enhanced tolerances regarding fuel impurities like CO for use in various applications. However, the impact of air impurities like NOx on the cell behavior is not completely understood yet. This study provides systematic investigation during 500 h of operation in presence of cathode air containing 10 ppm NO or NO2. Nitrogen oxides provoke a strongly and linearly decreasing voltage of 245.3 ± 18.5 mV h^-1 and highly comparable damage that verifies similar HT-PEMFC degradation via both oxides. Cyclic voltammetry and electron microscopy reveal the loss of electrochemical catalyst surface by selectively poisoned surface and enforced catalyst particle growth. Impedance spectroscopy reveals besides increased electrode charge transfer resistances an affected proton conductivity. In contrast, SO2/NO2 impurity mixture in real occurring Ratio causes less voltage decay due to a positive SO2 impact through H2SO4 formation causing further shown and discussed effects like nitrate formation and discharge.
Item URL in elib: | https://elib.dlr.de/143747/ | ||||||||||||||||||||||||||||
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Document Type: | Article | ||||||||||||||||||||||||||||
Title: | Impact of air contamination by NOx on the performance of high temperature PEM fuel cells | ||||||||||||||||||||||||||||
Authors: |
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Date: | 1 October 2021 | ||||||||||||||||||||||||||||
Journal or Publication Title: | International Journal of Hydrogen Energy | ||||||||||||||||||||||||||||
Refereed publication: | Yes | ||||||||||||||||||||||||||||
Open Access: | No | ||||||||||||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||||||||||||
In SCOPUS: | Yes | ||||||||||||||||||||||||||||
In ISI Web of Science: | Yes | ||||||||||||||||||||||||||||
Volume: | 46 | ||||||||||||||||||||||||||||
DOI: | 10.1016/j.ijhydene.2021.07.211 | ||||||||||||||||||||||||||||
Page Range: | pp. 33934-33947 | ||||||||||||||||||||||||||||
Publisher: | Elsevier | ||||||||||||||||||||||||||||
ISSN: | 0360-3199 | ||||||||||||||||||||||||||||
Status: | Published | ||||||||||||||||||||||||||||
Keywords: | High temperature PEM fuel cells Membrane electrode assembly Durability Air pollution Nitrogen oxides | ||||||||||||||||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||||||||||||
HGF - Program: | Transport | ||||||||||||||||||||||||||||
HGF - Program Themes: | Transport System | ||||||||||||||||||||||||||||
DLR - Research area: | Transport | ||||||||||||||||||||||||||||
DLR - Program: | V VS - Verkehrssystem | ||||||||||||||||||||||||||||
DLR - Research theme (Project): | V - Energie und Verkehr (old), E - Electrochemical Processes | ||||||||||||||||||||||||||||
Location: | Oldenburg | ||||||||||||||||||||||||||||
Institutes and Institutions: | Institute of Networked Energy Systems > Urban and Residential Technologies Institute of Engineering Thermodynamics > Electrochemical Energy Technology | ||||||||||||||||||||||||||||
Deposited By: | Büsselmann, Julian | ||||||||||||||||||||||||||||
Deposited On: | 13 Sep 2021 16:40 | ||||||||||||||||||||||||||||
Last Modified: | 28 Oct 2021 11:12 |
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