Short review on cobalt-free cathodes for solid oxide fuel cells

作者：Baharuddin Nurul Akidah; Muchtar Andanastuti^*; Somalu Mahendra Rao

来源：International Journal of Hydrogen Energy, 2017, 42(14): 9149-9155.

DOI：10.1016/j.ijhydene.2016.04.097

• Solid oxide fuel cell
• Cobalt-free cathode
• Polarization resistance

Cobalt-containing cathodes are known for their ability to operate under high-temperature applications in solid oxide fuel cells (SOFCs). Reducing the operation temperature into intermediate temperature-to-low temperature (IT-LT) zones may lead to a mismatch in the thermal expansion coefficient between the cathodes and the developed IT-LTSOFC electrolyte materials. Hence, cathode materials are adjusted to resolve this issue. Studies on IT-LTSOFC propose cobalt-free cathodes as an alternative way to produce high electro-chemical performance cells for operation within the IT-LT range. Novel cobalt-free cathode powders are developed using perovskite structured materials, such as strontium ferrite oxide, as the main components together with dopants. This paper reviews various studies on cobalt-free cathode development, including the most important parameter in determining cathode performance, namely, the polarization resistance of SOFC cathodes.

• 出版日期2017-4-6