Silver coated cathode for molten carbonate fuel cells

Aleksandra Łysik , Karol Ćwieka , Tomasz Wejrzanowski , Jakub Skibiński , J. Milewski , Fernando M. B. Marques , T. Norby , W. Xing

Abstract

Within this study, a layered cathode for use in a Molten Carbonate Fuel Cell (MCFC) has been developed. The substrate layer and reference MCFC cathode made of porous nickel was covered by a porous silver film with defined porosity and pore size. Both layers were fabricated using the tape casting method and further fired in a reductive atmosphere. The new cathode was assembled with other reference cell components to form a single MCFC, which was subjected to performance and durability tests. Scanning electron microscopy was used to analyze the microstructure of the materials before and after tests. The reference cathode was also studied for the comparison. The results show that the porous silver layer was able to enhance the electron transport between the cathode and current collector. It was also found that oxygen reduction is enhanced due to the presence of silver in the gas supply. As a result, the power density of the cell was increased by 50%. On the other hand, due to the separation from electrolyte by the NiO layer, no significant degradation of the silver layer, identified by SEM or electrochemical tests, was found after 1000 h.
Author Aleksandra Łysik (FMSE / DMD)
Aleksandra Łysik,,
- Division of Materials Design
, Karol Ćwieka (FMSE / DMD)
Karol Ćwieka,,
- Division of Materials Design
, Tomasz Wejrzanowski (FMSE / DMD)
Tomasz Wejrzanowski,,
- Division of Materials Design
, Jakub Skibiński (FMSE / DMD)
Jakub Skibiński,,
- Division of Materials Design
, J. Milewski (FEIT / PE)
J. Milewski,,
- The Institute of Electronic Systems
, Fernando M. B. Marques
Fernando M. B. Marques,,
-
, T. Norby
T. Norby,,
-
, W. Xing
W. Xing,,
-
Journal seriesInternational Journal of Hydrogen Energy, ISSN 0360-3199, e-ISSN 1879-3487
Issue year2020
Vol45
No38
Pages19847-19857
Publication size in sheets0.5
Keywords in EnglishMolten carbonate fuel cells, Cathode, Chemical modification, Silver
ASJC Classification2102 Energy Engineering and Power Technology; 2103 Fuel Technology; 2105 Renewable Energy, Sustainability and the Environment; 3104 Condensed Matter Physics
DOIDOI:10.1016/j.ijhydene.2020.05.112
URL https://www.sciencedirect.com/science/article/pii/S0360319920318930
Languageen angielski
Score (nominal)140
Score sourcejournalList
ScoreMinisterial score = 140.0, 14-09-2020, ArticleFromJournal
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2018 = 1.128; WoS Impact Factor: 2018 = 4.084 (2) - 2018=3.969 (5)
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