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A Review of RedOx Cycling of Solid Oxide Fuel Cells Anode
Design & Materials Unit (UDM), University of Applied Sciences Western Switzerland (HES-SO Valais), Sion 1950, Switzerland
Interdisciplinary Centre for Electron Microscopy (CIME), Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne 1015, Switzerland
Industrial Energy Systems Laboratory (LENI), EPFL, Lausanne 1015, Switzerland
* Author to whom correspondence should be addressed.
Received: 14 June 2012; in revised form: 16 July 2012 / Accepted: 17 July 2012 / Published: 31 August 2012
Abstract: Solid oxide fuel cells are able to convert fuels, including hydrocarbons, to electricity with an unbeatable efficiency even for small systems. One of the main limitations for long-term utilization is the reduction-oxidation cycling (RedOx cycles) of the nickel-based anodes. This paper will review the effects and parameters influencing RedOx cycles of the Ni-ceramic anode. Second, solutions for RedOx instability are reviewed in the patent and open scientific literature. The solutions are described from the point of view of the system, stack design, cell design, new materials and microstructure optimization. Finally, a brief synthesis on RedOx cycling of Ni-based anode supports for standard and optimized microstructures is depicted.
Keywords: SOFC anode; RedOx cycle; nickel reduction and oxidation; reoxidation instability; solid oxide fuel cell durability
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MDPI and ACS Style
Faes, A.; Hessler-Wyser, A.; Zryd, A.; Van herle, J. A Review of RedOx Cycling of Solid Oxide Fuel Cells Anode. Membranes 2012, 2, 585-664.
Faes A, Hessler-Wyser A, Zryd A, Van herle J. A Review of RedOx Cycling of Solid Oxide Fuel Cells Anode. Membranes. 2012; 2(3):585-664.
Faes, Antonin; Hessler-Wyser, Aïcha; Zryd, Amédée; Van herle, Jan. 2012. "A Review of RedOx Cycling of Solid Oxide Fuel Cells Anode." Membranes 2, no. 3: 585-664.