Hiesgen , Renate und Helmly, Stephan und Galm, Ines und Morawietz, Tobias und Handl, Michael und Friedrich, K. Andreas (2012) Microscopic Analysis of Current and Mechanical Properties of Nafion® Studied by Atomic Force Microscopy. Membranes (2), Seiten 783-803. Multidisciplinary Digital Publishing Institute (MDPI). doi: 10.3390/membranes2040783. ISSN 2077-0375.
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Offizielle URL: http://www.mdpi.com/journal/membranes
Kurzfassung
The conductivity of fuel cell membranes as well as their mechanical propertiesat the nanometer scale were characterized using advanced tapping mode atomic force microscopy (AFM) techniques. AFM produces high-resolution images under continuous current flow of the conductive structure at the membrane surface and provides some insight into the bulk conducting network in Nafion membranes. The correlation of conductivity with other mechanical properties, such as adhesion force, deformation and stiffness, were simultaneously measured with the current and provided an indication of subsurface phase separations and phase distribution at the surface of the membrane. The distribution of conductive pores at the surface was identified by the formation of water droplets. A comparison of nanostructure models with high-resolution current images is discussed in detail.
elib-URL des Eintrags: | https://elib.dlr.de/78621/ | ||||||||||||||||||||||||||||
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Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||||||||||||||
Titel: | Microscopic Analysis of Current and Mechanical Properties of Nafion® Studied by Atomic Force Microscopy | ||||||||||||||||||||||||||||
Autoren: |
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Datum: | 16 November 2012 | ||||||||||||||||||||||||||||
Erschienen in: | Membranes | ||||||||||||||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||||||||||||||
Open Access: | Ja | ||||||||||||||||||||||||||||
Gold Open Access: | Ja | ||||||||||||||||||||||||||||
In SCOPUS: | Ja | ||||||||||||||||||||||||||||
In ISI Web of Science: | Ja | ||||||||||||||||||||||||||||
DOI: | 10.3390/membranes2040783 | ||||||||||||||||||||||||||||
Seitenbereich: | Seiten 783-803 | ||||||||||||||||||||||||||||
Verlag: | Multidisciplinary Digital Publishing Institute (MDPI) | ||||||||||||||||||||||||||||
ISSN: | 2077-0375 | ||||||||||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||||||||||
Stichwörter: | Nafion; AFM; current; adhesion; stiffness; nanostructure; model | ||||||||||||||||||||||||||||
HGF - Forschungsbereich: | Energie | ||||||||||||||||||||||||||||
HGF - Programm: | Rationelle Energieumwandlung und Nutzung (alt) | ||||||||||||||||||||||||||||
HGF - Programmthema: | Brennstoffzelle (alt) | ||||||||||||||||||||||||||||
DLR - Schwerpunkt: | Energie | ||||||||||||||||||||||||||||
DLR - Forschungsgebiet: | E EV - Energieverfahrenstechnik | ||||||||||||||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | E - Elektrochemische Prozesse (alt) | ||||||||||||||||||||||||||||
Standort: | Stuttgart | ||||||||||||||||||||||||||||
Institute & Einrichtungen: | Institut für Technische Thermodynamik > Elektrochemische Energietechnik | ||||||||||||||||||||||||||||
Hinterlegt von: | Friedrich, Prof.Dr. Kaspar Andreas | ||||||||||||||||||||||||||||
Hinterlegt am: | 19 Nov 2012 15:20 | ||||||||||||||||||||||||||||
Letzte Änderung: | 15 Jun 2023 08:43 |
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