Electrophoretic deposition of Mn1.5Co1.5O4 on metallic interconnect and interaction with glass-ceramic sealant for solid oxide fuel cells application

Smeacetto F, De Miranda A, Cabanas Polo S, Molin S, Boccaccini D, Salvo M, Boccaccini AR (2015)

Publication Status: Published

Publication Type: Journal article, Original article

Publication year: 2015

Journal

Journal of Power Sources Elsevier

Publisher: Elsevier

Book Volume: 280

Pages Range: 379-386

DOI: 10.1016/j.jpowsour.2015.01.120

Abstract

Cr-containing stainless steels are widely used as metallic interconnects for SOFCs. Volatile Cr-containing species, which originate from the oxide formed on steel, can poison the cathode material and subsequently cause degradation in the SOFC stack. MnCoO spinel is one of the most promising coating materials due to its high electrical conductivity, good CTE match with the stainless steel substrate and an excellent chromium retention capability. In this work MnCoO spinel coatings are deposited on Crofer22APU substrates by cathodic electrophoretic deposition (EPD) followed by sintering at 800-1150 °C in different atmospheres. Dense, continuous and crack free MnCoO coatings (with thickness ranging from 10 to 40 μm) are obtained on Crofer22APU substrates. Moreover, electrical properties of the coated Crofer22APU alloy are tested up to 2500 h and an excellent compatibility is found between MnCoO coated Crofer22APU and a new glass-ceramic sealant, after 500 h of thermal tests in air, thus suggesting that the spinel protection layer can effectively act as a barrier to outward diffusion of Cr.

Authors with CRIS profile

Sandra Cabanas Polo Lehrstuhl für Werkstoffwissenschaften (Biomaterialien) Aldo Boccaccini Lehrstuhl für Werkstoffwissenschaften (Biomaterialien)

Involved external institutions

Politecnico di Torino IT Italy (IT) Technical University of Denmark / Danmarks Tekniske Universitet (DTU) DK Denmark (DK)

How to cite

APA:

Smeacetto, F., De Miranda, A., Cabanas Polo, S., Molin, S., Boccaccini, D., Salvo, M., & Boccaccini, A.R. (2015). Electrophoretic deposition of Mn1.5Co1.5O4 on metallic interconnect and interaction with glass-ceramic sealant for solid oxide fuel cells application. Journal of Power Sources, 280, 379-386. https://dx.doi.org/10.1016/j.jpowsour.2015.01.120

MLA:

Smeacetto, Federico, et al. "Electrophoretic deposition of Mn1.5Co1.5O4 on metallic interconnect and interaction with glass-ceramic sealant for solid oxide fuel cells application." Journal of Power Sources 280 (2015): 379-386.

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