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Review: Influence of alloy addition and spinel coatings on Cr-based metallic interconnects of solid oxide fuel cells

Solid oxide fuel cell (SOFC) is the modern eco-friendly technology of fuel cell power generation system. It generates electricity from a redox chemical reaction without producing hazardous gases. It consists of anode, cathode and electrolyte. It is operated in the form of stack connected by intercon...

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Main Authors: Hassan, M.A., Mamat, O.B., Mehdi, M.
Format: Article
Published: Elsevier Ltd 2020
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85088937458&doi=10.1016%2fj.ijhydene.2020.06.234&partnerID=40&md5=692c3a7d266385e8f9ffbca8ac50601f
http://eprints.utp.edu.my/29986/
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spelling my.utp.eprints.299862022-03-25T03:17:23Z Review: Influence of alloy addition and spinel coatings on Cr-based metallic interconnects of solid oxide fuel cells Hassan, M.A. Mamat, O.B. Mehdi, M. Solid oxide fuel cell (SOFC) is the modern eco-friendly technology of fuel cell power generation system. It generates electricity from a redox chemical reaction without producing hazardous gases. It consists of anode, cathode and electrolyte. It is operated in the form of stack connected by interconnects to boost-up power output. The recent development of low-temperature (600 °C�800 °C) brings an opportunity to use metallic interconnects over ceramics. Cr-based metallic interconnects are one of the prominent metallic interconnects. They offer chemical inertness, thermal stability, compatible coefficient of thermal expansion and highly dense structure. However, the Cr-migration towards the cathode side is the major problem in them which adversely affect the SOFCs performance. Therefore a good oxidation resistance without sacrificing electrical conductivity is required. To resolve this issue, several alloying elements and spinel coatings have experimented. These spinel coatings are the thin solid films of Mn, Co, Cu and rare earth metals. This review concluded that the Mn�Co based spinal coating showed excellent performance in reducing the Cr-migration in specially designed expensive Crofer 22 APU interconnect. However, the emerging low-cost ferritic interconnects also show their best results with Cu�Fe based spinel coating. Among them, the SUS-430 interconnect shows the equivalent performance of Crofer 22 APU interconnect after surface treatment and appropriate Cu�Fe based spinel coating. Therefore, it can replace the Crofer 22 APU interconnect on a cost basis. © 2020 Hydrogen Energy Publications LLC Elsevier Ltd 2020 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85088937458&doi=10.1016%2fj.ijhydene.2020.06.234&partnerID=40&md5=692c3a7d266385e8f9ffbca8ac50601f Hassan, M.A. and Mamat, O.B. and Mehdi, M. (2020) Review: Influence of alloy addition and spinel coatings on Cr-based metallic interconnects of solid oxide fuel cells. International Journal of Hydrogen Energy, 45 (46). pp. 25191-25209. http://eprints.utp.edu.my/29986/
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Institutional Repository
url_provider http://eprints.utp.edu.my/
description Solid oxide fuel cell (SOFC) is the modern eco-friendly technology of fuel cell power generation system. It generates electricity from a redox chemical reaction without producing hazardous gases. It consists of anode, cathode and electrolyte. It is operated in the form of stack connected by interconnects to boost-up power output. The recent development of low-temperature (600 °C�800 °C) brings an opportunity to use metallic interconnects over ceramics. Cr-based metallic interconnects are one of the prominent metallic interconnects. They offer chemical inertness, thermal stability, compatible coefficient of thermal expansion and highly dense structure. However, the Cr-migration towards the cathode side is the major problem in them which adversely affect the SOFCs performance. Therefore a good oxidation resistance without sacrificing electrical conductivity is required. To resolve this issue, several alloying elements and spinel coatings have experimented. These spinel coatings are the thin solid films of Mn, Co, Cu and rare earth metals. This review concluded that the Mn�Co based spinal coating showed excellent performance in reducing the Cr-migration in specially designed expensive Crofer 22 APU interconnect. However, the emerging low-cost ferritic interconnects also show their best results with Cu�Fe based spinel coating. Among them, the SUS-430 interconnect shows the equivalent performance of Crofer 22 APU interconnect after surface treatment and appropriate Cu�Fe based spinel coating. Therefore, it can replace the Crofer 22 APU interconnect on a cost basis. © 2020 Hydrogen Energy Publications LLC
format Article
author Hassan, M.A.
Mamat, O.B.
Mehdi, M.
spellingShingle Hassan, M.A.
Mamat, O.B.
Mehdi, M.
Review: Influence of alloy addition and spinel coatings on Cr-based metallic interconnects of solid oxide fuel cells
author_facet Hassan, M.A.
Mamat, O.B.
Mehdi, M.
author_sort Hassan, M.A.
title Review: Influence of alloy addition and spinel coatings on Cr-based metallic interconnects of solid oxide fuel cells
title_short Review: Influence of alloy addition and spinel coatings on Cr-based metallic interconnects of solid oxide fuel cells
title_full Review: Influence of alloy addition and spinel coatings on Cr-based metallic interconnects of solid oxide fuel cells
title_fullStr Review: Influence of alloy addition and spinel coatings on Cr-based metallic interconnects of solid oxide fuel cells
title_full_unstemmed Review: Influence of alloy addition and spinel coatings on Cr-based metallic interconnects of solid oxide fuel cells
title_sort review: influence of alloy addition and spinel coatings on cr-based metallic interconnects of solid oxide fuel cells
publisher Elsevier Ltd
publishDate 2020
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85088937458&doi=10.1016%2fj.ijhydene.2020.06.234&partnerID=40&md5=692c3a7d266385e8f9ffbca8ac50601f
http://eprints.utp.edu.my/29986/
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score 13.211869

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