CeO2-doped CuO/(Cu, Mn, Fe)3O4 Coatings for Protecting 
Solid Oxide Fuel Cell Interconnects

Ye Lv

doi:10.70711/frim.v3i9.7321

CeO2-doped CuO/(Cu, Mn, Fe)3O4 Coatings for Protecting Solid Oxide Fuel Cell Interconnects

Ye Lv

Abstract

To protect solid oxide fuel cell (SOFC) interconnects from Cr poisoning and to improve electrical properties, CeO2-doped CuO/
(Cu, Mn, Fe)3O4 layer was fabricated on SUS 430 ferritic stainless steel by composite electrodeposition, followed by thermal exposure in air
at 800C for up to 5 weeks. Moreover, an area-specific resistance (ASR) value of 20.088 m?cm2
at 800C was achieved for the CeO2-doped
coated steel after 5 weeks of exposure in air, which was lower than that of the CeO2-free coated steel (22.464 m?cm2
) or the uncoated steel
(35.856 m?cm2
) at the same testing conditions. The results showed that CeO2-doped CuO/(Cu, Mn, Fe)3O4 layer not only decreased the ASR
values, but also acted as an effective barrier to the outward diffusion of chromium from the steel interconnect.

Keywords

Solid oxide fuel cell; Metallic interconnect; Reactive element doped coating; Composite electrodeposition; Oxidation; ASR

Full Text:

PDF

Included Database

References

[1] J. Xiao, W. Zhang, C. Xiong, et al (2015) Oxidation of MnCu0.5Co1.5O4 spinel coated SUS430 alloy interconnect in anode and cathode

atmospheres for intermediate temperature solid oxide fuel cell, Int. J. Hydrog. Energy 40: 1868-1876.

[2] W. Wu, W. Guan, G. Wang, et al (2014) Evaluation of Ni80Cr20/(La0.75Sr0.25)0.95MnO3 dual layer coating on SUS 430 stainless steel used as

metallic interconnect for solid oxide fuel cells, Int. J. Hydrog. Energy 39: 996-1004.

[3] J. Wu, X. Liu (2010) Recent development of SOFC metallic interconnect, J. Mater Sci Technol 26: 293-305.

[4] C. Sun, R. Hui, J. Roller (2010) Cathode materials for solid oxide fuel cells: a review, J. Solid State Electrochem. 14: 1125-1144.

[5] Lv Y, Luo S.Y. Oxidation and Electrical Properties of Cu-Mn3O4 Composite Coating Obtained by Electrodeposition on SOFC Interconnects. Journal of Wuhan University of Technology-Mater. Sci. Ed., Vol.38 No.1:72-78.

[6] N. Shaigan, W. Qu, D.G. Ivey, et al (2010) A review of recent progress in coatings, surface modifications and alloy developments for

solid oxide fuel cell ferritic stainless steel interconnects, J. Power Sources 195: 1529-1542.

[7] X. Xin, S. Wang, J. Qian, et al (2012) Development of the spinel powder reduction technique for solid oxide fuel cell interconnect coating, Int. J. Hydrog. Energy 37: 471.

[8] J. Zhu, M.J. Lewis, S. Du, et al (2015) CeO2-doped (Co, Mn)3O4 coatings for protecting solid oxide fuel cell interconnect alloys, Thin

Solid Films 596:179-184.

[9] Y. Lv, S. Geng, Z. Shi (2017) Evaluation of electroplated copper coating on ferritic stainless steel for solid oxide fuel cells interconnects, J.

Alloys Compd. 726: 269-275.

[10] S. Fontana, R. Amendola, S. Chevalier, et al (2007) Metallic interconnects for SOFC: Characterisation of corrosion resistance and conductivity evaluation at operating temperature of differently coated alloys, J. Power Sources 171: 652-662.

DOI: http://dx.doi.org/10.70711/frim.v3i9.7321

Refbacks

There are currently no refbacks.