First experimental investigation of Th4+doped barium cerate as electrolytes for intermediate-temperature solid oxide fuel cells

Zetian Tao, Yaxing Wang, Yanlong Wang, Juan Diwu, Zhifang Chai, Shuao Wang*, "Firstexperimental investigation of Th⁴⁺doped barium cerate as electrolytes for intermediate-temperature solid oxide fuel cells" Ceram. Int. 2016, 42(15), 17897-17900.

Barium cerate doped with tetravalent Th is successfully synthesized by a traditional pechni method. TheBaCe_0.7Th_0.1Y_0.2O_3-δ (BCT71) composites were applied to an anode supported coin single cell consisting of Ni-BCT71 anode/BCT71 electrolyte/BCT71-La_0.7Sr_0.3FeO_3-δ cathode. The assembled cell is tested from 600^◦C to700^◦C with humidified hydrogen (∼ 3% H₂O) as the fuel and the staic air as the oxidant. An opencircuit potential of 0.93 V and a maximum power density of 104 mWcm⁻² are obtained for the single cell with an interface resistance of 0.98 Ω·cm²at 700^◦C.