Intermediate-temperature solid oxide fuel cells IT-SOFCs

FabbriE, D Epifanio A, Di Bartolomeo E,LicocciaS, Traversa E (2008) Tailoring the chemical stability of Ba(Ceo.8-xZrx)Yo.203 5 protonic conductors for intermediate temperature solid oxide fuel cells (IT-SOFCs). Solid State Ionics 179 558-564... 

IT-SOFC intermediate temperature solid oxide fuel cell... 

Baron, S. (2004) Opening doors to fuel cell commercialisation intermediate temperature (500-850 °C) solid oxide fuel cells (IT-SOFCs) explained. Fuel Cell Today, www.fuelcelltoday.com (last accessed 24 November 2011). 

Solid oxide fuel cells (SOFCs) are one of the most efficient energy conversion devices [1]. The main demand in the current SOFC development is lowering operation temperature to the range of 600-800 C - intermediate temperature SOFC (IT-SOFC). In order to lower operational temperature and increase or at least sustain performance comparable to that at high temperature SOFCs, it is necessary to decrease the resistance of the electrolyte and lower the overpotential of the electrodes. One of the ways to achieve this goal is to decrease the thickness of the electrolyte and optimize the structure of the electrodes. 

Other Oxide Electrolyte Systems Ceria-Based Electrolytes Ceria-based solid electrolytes have received an increasing attention for so-called IT-SOFC (solid oxide fuel cells for intermediate temperature) because of their high conductivity. But its electrolytic domain is relatively small so that the working temperature must not be higher than 700 °C without a remarkable loss in efficiency due to the electronic conductivity. By doping with aliovalent stable oxides, a remarkable increase of conductivity... 

---