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Membranes, Electrodes, and Membrane-Electrodes Assemblies Analyzed before and after Operation by Atomic Force Microscopy

Morawietz, Tobias and Handl, Michael and Simolka, Matthias and Friedrich, K. Andreas and Hiesgen, Renate (2015) Membranes, Electrodes, and Membrane-Electrodes Assemblies Analyzed before and after Operation by Atomic Force Microscopy. ECS Transactions, 68 (3), pp. 3-12. Electrochemical Society, Inc.. DOI: [10.1149/06803.0003ecst] ISSN 1938-5862

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Official URL: http://ecst.ecsdl.org/

Abstract

Material-sensitive and conductive atomic force microscopy was applied to the investigation of cross sections of membraneelectrode-assemblies (MEA) at operating conditions, 80% relative humidity and 75°C, before and after operation. The ionomer content inside the electrodes could be measured due to their characteristic mechanical, chemical and physical properties. By surface potential measurements across MEAs after degrading fuel cell operation, a severe influence of the re-deposited platinum on the potential distribution was found.

Item URL in elib:https://elib.dlr.de/100727/
Document Type:Article
Title:Membranes, Electrodes, and Membrane-Electrodes Assemblies Analyzed before and after Operation by Atomic Force Microscopy
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Morawietz, TobiasHochschule EsslingenUNSPECIFIED
Handl, MichaelHochschule EsslingenUNSPECIFIED
Simolka, MatthiasMatthias.Simolka (at) ict.fraunhofer.deUNSPECIFIED
Friedrich, K. Andreasandreas.friedrich (at) dlr.deUNSPECIFIED
Hiesgen, Renaterenate.hiesgen (at) hs-esslingen.deUNSPECIFIED
Date:2015
Journal or Publication Title:ECS Transactions
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Volume:68
DOI :[10.1149/06803.0003ecst]
Page Range:pp. 3-12
Publisher:Electrochemical Society, Inc.
ISSN:1938-5862
Status:Published
Keywords:Atomic Force Microscopy, Ionomer, Fuel Cell Electrodes
HGF - Research field:Energy
HGF - Program:Efficient Energy Conversion and Use (old)
HGF - Program Themes:Fuel Cells (old)
DLR - Research area:Energy
DLR - Program:E EV - Energy process technology
DLR - Research theme (Project):E - Electrochemical Processes (old)
Location: Stuttgart
Institutes and Institutions:Institute of Engineering Thermodynamics > Electrochemical Energy Technology
Deposited By: Friedrich, Prof.Dr. Kaspar Andreas
Deposited On:09 Dec 2015 14:05
Last Modified:06 Sep 2019 15:24

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