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Corrosion of carbon supports, induced by high-temperature PEMFC operating conditions

: Rau, María; Jung, Florina; Cremers, Carsten; Tübke, Jens

Volltext urn:nbn:de:0011-n-4558476 (193 KByte PDF)
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Erstellt am: 1.12.2020

Fernandez, A. ; European Space Agency -ESA-, Paris:
11th European Space Power Conference 2016 : Porto Palace Thessaloniki, Greece, October 3-7, 2016
Les Ulis: EDP Sciences, 2017 (E3S Web of Conferences 16)
ISSN: 2267-1242
Art. 10001, 4 S.
European Space Power Conference (ESPC) <11, 2016, Thessaloniki>
Konferenzbeitrag, Elektronische Publikation
Fraunhofer ICT ()
corrosion; fuel technology; cathodes; electrode material; electrolytic cells; carbon; oxidation; Anodes; Proton Exchange Membrane Fuel Cells; temperature effect; platinum; degradation

In high-temperature polymer electrolyte membrane fuel cells (HT-PEMFC) one of the detrimental factors that lead to loss of performance is the corrosion of the electrocatalyst support. In both anode and cathode, platinum (Pt) supported on carbon is generally the selected electrocatalyst. Platinum significantly increases the speed of the anode and cathode reactions, but also causes carbon oxidation (corrosion of the support) and the consequent degradation of the electrode materials. In a HT-PEMFC, corrosion is influenced by temperature. For this reason, this paper will present a detailed evaluation of the carbon support degradation under HT-PEMFC conditions. The carbon oxidation of two types of carbon supports will be compared.