Search
Iron doped manganese cobaltite spinel coatings produced by electrophoretic co-deposition on interconnects for solid oxide cells: Microstructural and electrical characterization
Abstract
We report a systematic microstructural and electrical characterization of iron doped Mn–Co spinel coatings processed by electrophoretic co-deposition of Mn1.5Co1.5O4 and Fe2O3 powders on Crofer 22 APU and AISI 441 steel substrates. Iron addition to Mn–Co spinel coating leads to a reduction of the area specific resistance on both substrates, after 3200 h at 750 °C. The Fe doped Mn–Co coating both leads to a thinner oxide scale and reduces the sub scale oxidation for the Crofer 22 APU substrate. Fe doped Mn–Co on AISI 441 shows both a thicker oxide scale and low area specific resistance values, likely due to a doping effect of the oxide scale by minor alloying elements. The different mechanisms by which iron doping of Mn–Co spinels can influence elemental interdiffusion at the steel-oxide scale-coating interfaces and relative contributions to the overall area specific resistance are evaluated by means of advanced electron microscopy. The promising results are further confirmed in a cell test, where the Fe doped MnCo coated interconnect does not induce any degradation of the oxygen electrode, proving its efficiency.
Citations
-
2 5
CrossRef
-
0
Web of Science
-
2 8
Scopus
Authors (7)
-
Elisa Zanchi
-
A Sabato
-
B Talic
-
Grzegorz Cempura dr inż.
-
A Boccaccini
-
F Smeacetto
Cite as
Full text
full text is not available in portal
Keywords
Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
JOURNAL OF POWER SOURCES
no. 455,
ISSN: 0378-7753 - Language:
- English
- Publication year:
- 2020
- Bibliographic description:
- Zanchi E., Molin S., Sabato A., Talic B., Cempura G., Boccaccini A., Smeacetto F.: Iron doped manganese cobaltite spinel coatings produced by electrophoretic co-deposition on interconnects for solid oxide cells: Microstructural and electrical characterization// JOURNAL OF POWER SOURCES -Vol. 455, (2020), s.22791-
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.jpowsour.2020.227910
- Verified by:
- Gdańsk University of Technology
seen 126 times
Recommended for you
Mn-Co spinel coatings on Crofer 22 APU by electrophoretic deposition: Up scaling, performance in SOFC stack at 850 °C and compositional modifications
- A. Sabato,
- E. Zanchi,
- S. Molin
- + 6 authors
Electrophoretic co-deposition of Fe2O3 and Mn1,5Co1,5O4: Processing and oxidation performance of Fe-doped Mn-Co coatings for solid oxide cell interconnects
- E. Zanchi,
- B. Talic,
- A. Sabato
- + 3 authors
Effective yttrium based coating for steel interconnects of solid oxide cells: Corrosion evaluation in steam-hydrogen atmosphere
- S. Molin,
- Å. Persson,
- T. Skafte
- + 6 authors
High temperature oxidation behavior of SUS430 SOFC interconnects with Mn-Co spinel coating in air
- C. Jia,
- Y. Wang,
- S. Molin
- + 3 authors