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Surface Analytical Methods for the Development of Electrochemical Components of Polymer Electrolyte Fuel Cells

Biswas, Indro und Gazdzicki, Pawel und Schulze, Mathias (2013) Surface Analytical Methods for the Development of Electrochemical Components of Polymer Electrolyte Fuel Cells. In: ECS Transactions. GDCh-Wissenschaftsforum 2013, 2013-09-01 - 2013-09-04, Darmstadt, Deutschland. ISBN 978-160768539-5. ISSN 19386737.

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Kurzfassung

The transition from fossil to renewable energies implies significant changes in the energy system regarding the distribution, storage and energy conversion due to the intrinsic natural fluctuations of renewable power sources. Polymer electrolyte fuel cells (PEFC) are highly efficient electrochemical energy converters that may be implemented in a wide range of power and dynamics. Their high gravimetric energy density makes them attractive for many applications, especially for mobile purposes. In particular they are a key to hydrogen fuelled electric cars. However, the durability of fuel cells is still an important issue. The understanding of the occurring degradation mechanisms is a crucial step in the development of sustainable fuel cells with long operational times. Surface analytical methods provide insight into the surface chemistry of PEFCs and allow the studying of degradation products and mechanisms. The combination of methods gives complementary information about the investigated fuel cell components. X-ray photoemission spectroscopy (XPS) yields information about elements and binding states. Infrared and Raman spectromicro-scopy in combination with scanning and/or imaging techniques allows a fast investigation of larger sample areas. Due to roughness and reflectivity issues the use of diffuse reflection or attenuated total reflection in direct contact (ATR) need to be pondered. An overview of the applied surface analysis methods and their advantages and difficulties is presented.

elib-URL des Eintrags:https://elib.dlr.de/84631/
Dokumentart:Konferenzbeitrag (Poster)
Titel:Surface Analytical Methods for the Development of Electrochemical Components of Polymer Electrolyte Fuel Cells
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Biswas, Indroindro.biswas (at) dlr.dehttps://orcid.org/0000-0002-6815-4204NICHT SPEZIFIZIERT
Gazdzicki, Pawelpawel.gazdzicki (at) dlr.dehttps://orcid.org/0000-0002-5728-7861NICHT SPEZIFIZIERT
Schulze, Mathiasmathias.schulze (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:2 September 2013
Erschienen in:ECS Transactions
Referierte Publikation:Nein
Open Access:Ja
Gold Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Nein
ISSN:19386737
ISBN:978-160768539-5
Status:veröffentlicht
Stichwörter:energy transition, fuel cells, surface analytics, multi-scale analytics
Veranstaltungstitel:GDCh-Wissenschaftsforum 2013
Veranstaltungsort:Darmstadt, Deutschland
Veranstaltungsart:nationale Konferenz
Veranstaltungsbeginn:1 September 2013
Veranstaltungsende:4 September 2013
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: Biswas, Dr. Indro
Hinterlegt am:23 Okt 2013 11:09
Letzte Änderung:24 Apr 2024 19:50

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