Electrochemical Performance of Solid Oxide Electrolysis Cells with LSCF6428-SDC/SDC Electrode for H_2O/CO_2 High Temperature Co-electrolysis

摘要

High temperature co-electrolysis of H_2O/CO_2 on solid oxide electrolysis cell (SOEC) is one of the technologies 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 different heat-treatment temperatures 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 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.