TY  - JOUR
IS  - 46
N2  - 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 °Câ??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 Mnâ??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 Cuâ??Fe based spinel coating. Among them, the SUS-430 interconnect shows the equivalent performance of Crofer 22 APU interconnect after surface treatment and appropriate Cuâ??Fe based spinel coating. Therefore, it can replace the Crofer 22 APU interconnect on a cost basis. © 2020 Hydrogen Energy Publications LLC
KW  - Alloying elements; Auxiliary power systems; Cathodes; Chemical stability; Coatings; Electrolytes; Metals; Oxidation resistance; Rare earths; Surface treatment; Temperature; Thermal expansion
KW  -  Chemical inertness; Eco-friendly technologies; Electrical conductivity; Fuel cell power generation system; Low temperatures; Metallic interconnects; Rare earth metals; Thin solid film
KW  -  Solid oxide fuel cells (SOFC)
ID  - scholars12737
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85088937458&doi=10.1016%2fj.ijhydene.2020.06.234&partnerID=40&md5=692c3a7d266385e8f9ffbca8ac50601f
A1  - Hassan, M.A.
A1  - Mamat, O.B.
A1  - Mehdi, M.
JF  - International Journal of Hydrogen Energy
VL  - 45
Y1  - 2020///
N1  - cited By 44
SP  - 25191
TI  - Review: Influence of alloy addition and spinel coatings on Cr-based metallic interconnects of solid oxide fuel cells
AV  - none
EP  - 25209
SN  - 03603199
PB  - Elsevier Ltd
ER  -