A Review of RedOx Cycling of Solid Oxide Fuel Cells Anode

Membranes

Antonin Faes¹  A໼ha Hessler-Wyser²  Amຝພ Zryd¹ 

[1] 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;

关键词: SOFC anode;    RedOx cycle;    nickel reduction and oxidation;    reoxidation instability;    solid oxide fuel cell durability.;   

DOI  :  10.3390/membranes2030585

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2012 by the authors; licensee MDPI, Basel, Switzerland.