Nitrogen-functionalized carbon-supported Pt catalysts implemented in high-temperature polymer electrolyte membrane fuel cell

2021 ◽  
pp. 229971
Author(s):  
Nicole Pimperl ◽  
Nico Bevilacqua ◽  
Michael A. Schmid ◽  
Paulette A. Loichet Torres ◽  
Hany A. El-Sayed ◽  
...  
Keyword(s):  
High Temperature ◽  
Fuel Cell ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Membrane ◽  
Pt Catalysts ◽  
Electrolyte Membrane ◽  
Supported Pt Catalysts

High temperature polymer electrolyte membrane fuel cell degradation provoked by ammonia as ambient air contaminant

2021 ◽  
Vol 502 ◽  
pp. 229993
Author(s):  
Dana Schonvogel ◽  
Julian Büsselmann ◽  
Henrike Schmies ◽  
Hendrik Langnickel ◽  
Peter Wagner ◽  
...  
Keyword(s):  
High Temperature ◽  
Fuel Cell ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Membrane ◽  
Ambient Air ◽  
Electrolyte Membrane ◽  
Air Contaminant

scholarly journals Investigation of Corrosion Methods for Bipolar Plates for High Temperature Polymer Electrolyte Membrane Fuel Cell Application

Energies ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 235
Author(s):  
Nadine Pilinski ◽  
Claudia Käding ◽  
Anastasia Dushina ◽  
Thorsten Hickmann ◽  
Alexander Dyck ◽  
...  
Keyword(s):  
High Temperature ◽  
Fuel Cell ◽  
Polymer Electrolyte ◽  
Corrosion Behaviour ◽  
Polymer Electrolyte Membrane ◽  
Carbon Surface ◽  
Potential Range ◽  
Bipolar Plates ◽  
Electrolyte Membrane ◽  
Fuel Cell Application

In this work, different methods and electrochemical set-ups were investigated in order to study the corrosion behaviour of bipolar plates (BPP) for high temperature (HT) polymer electrolyte membrane fuel cell application. Using confocal and scanning electron microscopy, it was shown that chemical and electrochemical aging significantly increases surface roughness as well as morphology changes, confirming material degradation. Identical electrochemical corrosion behaviour was observed for both set-ups with typical quinone/hydroquinone peaks in the potential range ~0.6–0.7 V versus reversible hydrogen electrode (RHE). The appearance of the peaks and an increase of double layer capacitance can be related to the oxidation of carbon surface and, consequently, material corrosion. Simultaneously, an optimised corrosion set-up was introduced and verified regarding suitability. Both investigated set-ups and methods are useful to analyse the oxidation behaviour and corrosion resistance.

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