Study of a Fuel Electrode-Supported Solid Oxide Electrolysis Cell Prepared by Aqueous Co-Tape Casting

Chao Liu, School of Energy and Power Engineering, Nanjing University of Science and Technology, 200 Xiaolingwei Street, Jiangsu Province, 210094, China
2019 International Journal of Electrochemical Science  
High temperature solid oxide electrolysis cells (SOECs) have the potential to efficiently and economically produce of hydrogen fuels. In this paper, large area fuel electrode-supported half cells with Zr0.92Y0.08O2-δ (YSZ) electrolyte and Ni/YSZ fuel electrode were fabricated by aqueous-based co-tape casting in conjunction with co-sintering, and the air electrode with La0.6Sr0.4Co0.2Fe0.8O3+δ/Ce0.9Gd0.1O2+δ (LSCF/CGO) was fabricated by screen printing. In solid oxide fuel cell (SOFC) mode, the
more » ... l (SOFC) mode, the maximum power density is 447 mW cm -2 at 800 °C with humidified H2 as the fuel and air as the oxidant. In solid oxide electrolysis cell (SOEC) mode, the hydrogen production rate of button cell is 222.2 ml h -1 cm -2 under an electrolysis voltage of 1.3 V with 70 vol.% steam.
doi:10.20964/2019.12.37 fatcat:ls7woig5wzabtk47fsqn2mv7xm