Dynamic impedance measurements of the Direct Methanol Fuel Cell cathode at various operating temperatures - Publikacja - MOST Wiedzy

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Dynamic impedance measurements of the Direct Methanol Fuel Cell cathode at various operating temperatures

Abstrakt

This article discusses the application of impedance analysis for diagnosing the cathode of a direct methanol fuel cell at various operating temperatures. The Dynamic Electrochemical Impedance Spectroscopy technique coupled with a linear current scan was applied for this purpose. This technique allowed the observation of changes in the cathode's properties in the fuel cell operating under real working conditions. An equivalent model based on the thin-film flooded agglomerate model describing the cathode's behavior was presented, and changes in its parameters were compared with current load and different temperatures. Polarization resistance of the active site and carbon support was obtained. Changes in the slope of the resistance curves with increasing load have been observed, which can suggest the change in the electrode process. Differences in slopes depending on temperature were also recorded.

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Informacje szczegółowe

Kategoria:
Publikacja w czasopiśmie
Typ:
artykuły w czasopismach
Opublikowano w:
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY nr 67, strony 83 - 90,
ISSN: 0360-3199
Język:
angielski
Rok wydania:
2024
Opis bibliograficzny:
Gaweł Ł., Parasińska D.: Dynamic impedance measurements of the Direct Methanol Fuel Cell cathode at various operating temperatures// INTERNATIONAL JOURNAL OF HYDROGEN ENERGY -Vol. 67, (2024), s.83-90
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1016/j.ijhydene.2024.04.169
Źródła finansowania:
  • Publikacja bezkosztowa
Weryfikacja:
Politechnika Gdańska

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