<div class="csl-bib-body">
<div class="csl-entry">Varain, L., Fafilek, G., Nelhiebel, M., & Larisegger, S. (2022, August 23). <i>Electrochemical Investigation and Modeling of Ion- and Water Transport Through Polymer Membranes</i> [Conference Presentation]. ABAF 2022, Brno, Czechia.</div>
</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/81440
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dc.description
Oral presentation
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dc.description.abstract
Ion exchange membranes are essential for energy applications such as fuel cells or redox flow batteries. Ion-mobility and -selectivity are the key features of such membranes. In interaction with aqueous electrolytes another important feature is the water/solvent transport. The determination of the describing coefficients for the ion permeability, transport number and water permeability is crucial to make systems comparable or to develop membranes with improved performance.
This work presents a measurement method for the simultaneous determination of coupled ion- and water permeability in polymer membranes. For this purpose, measurement methods for the determination of concentration-, volume- and membrane-potential changes are integrated into one miniaturized concentration cell.
A freestanding ion exchange membrane with largely known properties is then used to evaluate the new combined measurement setup. The membrane of choice is a Nafion 211 membrane, since Nafion is one of the most investigated PEM in literature and allows a comparison of the results with existing data.
For the general description of the coupled transport processes, a system of ordinary differential equations is developed.
Furthermore, a FEM model is developed in COMSOL Multiphysics®, which specifically simulates the ion distribution within the membrane and the resulting electrical fields.
en
dc.description.sponsorship
Infineon Technologies Ausria AG
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dc.language.iso
en
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dc.subject
Electrochemical methods
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dc.subject
FEM modeling
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dc.subject
Polymer membrane
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dc.subject
Permeability
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dc.title
Electrochemical Investigation and Modeling of Ion- and Water Transport Through Polymer Membranes
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dc.type
Presentation
en
dc.type
Vortrag
de
dc.contributor.affiliation
KAI GmbH, Villach/Austria
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dc.relation.grantno
6000007519
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dc.type.category
Conference Presentation
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tuw.project.title
Power2020
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tuw.researchTopic.id
M2
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tuw.researchTopic.id
C6
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tuw.researchTopic.name
Materials Characterization
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tuw.researchTopic.name
Modeling and Simulation
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tuw.researchTopic.value
50
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tuw.researchTopic.value
50
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tuw.publication.orgunit
E164-04-2 - Forschungsgruppe Elektrochemische Methoden und Korrosion
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tuw.event.name
ABAF 2022
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tuw.event.startdate
21-08-2022
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tuw.event.enddate
24-08-2022
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tuw.event.online
On Site
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tuw.event.type
Event for scientific audience
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tuw.event.place
Brno
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tuw.event.country
CZ
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tuw.event.institution
Faculty of Electrical Engineering and Communication of the Brno University of Technology in cooperation with the International Society of Electrochemistry
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tuw.event.presenter
Varain, Lars
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wb.sciencebranch
Chemie
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wb.sciencebranch.oefos
1040
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wb.sciencebranch.value
100
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item.openairetype
Presentation
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item.openairetype
Vortrag
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item.grantfulltext
restricted
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item.cerifentitytype
Publications
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item.cerifentitytype
Publications
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item.languageiso639-1
en
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item.openairecristype
http://purl.org/coar/resource_type/c_18cf
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item.openairecristype
http://purl.org/coar/resource_type/c_18cf
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item.fulltext
no Fulltext
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crisitem.project.funder
Infineon Technologies Austria AG AFC1
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crisitem.project.grantno
6000007519
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crisitem.author.dept
E164-04-2 - Forschungsgruppe Elektrochemische Methoden und Korrosion
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crisitem.author.dept
E164-04-2 - Forschungsgruppe Elektrochemische Methoden und Korrosion
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crisitem.author.dept
E164 - Institut für Chemische Technologien und Analytik