Electrochemical Performance of Solid Oxide Electrolysis Cells with LSCF6428-SDC/SDC Electrode for H2O/CO2 High Temperature Co-Electrolysis

Abstract

High temperature co-electrolysis of H2O/CO2 on solid oxide electrolysis cell (SOEC) is one of technology to produce syngas as an energy conversion and storage solution using carbon dioxide. Here Ni-8YSZ/8YSZ/LSCF6428-SDC button cells were fabricated and the effect of the different heat-treatment temperature on the performance of SOEC has been investigated. The SOEC with LSCF6428-SDC air electrode and SDC buffer layer as an addition of YSZ-(LSCF-SDC) adhesion layer gives the better performance in overall results and the voltage obtained for this SOEC at current density of 0.8 A·cm-1 is from ~ 1.2 V to ~ 1.8 V.