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An integral-differential method for impedance determination of the hydrogen oxidation process in the presence of carbon monoxide in the proton exchange membrane fuel cell

Darowicki, Kazimierz and Gawel, Lukasz and Mielniczek, Michal and Janicka, Ewa and Zielinski, Artur and Mitzel, Jens and Hunger, Jürgen (2020) An integral-differential method for impedance determination of the hydrogen oxidation process in the presence of carbon monoxide in the proton exchange membrane fuel cell. International Journal of Hydrogen Energy, 45 (51), pp. 27551-27562. Elsevier. DOI: 10.1016/j.ijhydene.2020.07.038 ISSN 0360-3199

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Official URL: https://www.sciencedirect.com/science/article/abs/pii/S0360319920325702

Abstract

The impedance of a proton exchange membrane fuel cell powered by hydrogen contaminated with carbon monoxide, ranging from 150 to 300 ppb, is measured and discussed. The tested range of CO concentration complied with the fuel standard specified in the ISO standards. Studies of influence of CO contamination on operation of PEMFC are crucial for further development and commercialization of fuel cells for automotive applications. Based on the measurements made by Dynamic Electrochemical Impedance Spectroscopy (DEIS), changes in the cell impedance as a function of time were determined. An innovative integral-differential methodology for the analysis of chrono-impedance diagrams was developed, which enabled the extraction of the impedance spectra describing the anodic processes. This way of analysis is completely novel and original and it was not presented before in literature. The ability to monitor and diagnose the anode's operation under real operation conditions is demonstrated. The reversibility of the CO adsorption process and the loss of anode catalytic activity were verified. All this issues were not possible to be studied before with the use of classic impedance measurements.

Item URL in elib:https://elib.dlr.de/136547/
Document Type:Article
Title:An integral-differential method for impedance determination of the hydrogen oxidation process in the presence of carbon monoxide in the proton exchange membrane fuel cell
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Darowicki, KazimierzPolitechnika GdanskaUNSPECIFIED
Gawel, LukaszPolitechnika GdanskaUNSPECIFIED
Mielniczek, MichalPolitechnika GdanskaUNSPECIFIED
Janicka, EwaPolitechnika GdanskaUNSPECIFIED
Zielinski, ArturPolitechnika GdanskaUNSPECIFIED
Mitzel, JensJens.Mitzel (at) dlr.dehttps://orcid.org/0000-0001-8137-9689
Hunger, JürgenZSWUNSPECIFIED
Date:16 October 2020
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:45
DOI :10.1016/j.ijhydene.2020.07.038
Page Range:pp. 27551-27562
Publisher:Elsevier
ISSN:0360-3199
Status:Published
Keywords:Impedance Anode Analysis Carbon monoxide Hydrogen oxidation reaction PEM fuel cell
HGF - Research field:Energy
HGF - Program:Storage and Cross-linked Infrastructures
HGF - Program Themes:Fuel cells
DLR - Research area:Energy
DLR - Program:E SP - Energy Storage
DLR - Research theme (Project):E - Electrochemical Processes (Fuel Cells)
Location: Stuttgart
Institutes and Institutions:Institute of Engineering Thermodynamics > Electrochemical Energy Technology
Deposited By: Mitzel, Dr. Jens
Deposited On:23 Oct 2020 09:45
Last Modified:23 Oct 2020 09:45

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