A joint research team, affiliated to UNIST, introduced the hybrid electrolysis solid cell system (Hybrid-SOEC) with the highest electrochemical performance reported in hydrogen production. The proposed system has attracted a lot of attention as a promising new option for cost-effective and highly efficient hydrogen production, as it shows excellent performance compared to other water electrolysis systems.
This advance has been led by Professor Guntae Kim at the School of Energy and Chemical Engineering at UNIST in collaboration with Professor Tak-Hyoung Lim of the Korean Energy Research Institute (KIER) and Professor Jeeyoung Shin of Sookmyung Women’s University.
A solid oxide electrolyzer cell (SOEC) consists of two electrodes and an electrolyte that are all in the solid state. They are desired as new candidates for the production of hydrogen, since they do not require the replacement of lost electrolytes, while eliminating corrosion problems. In addition, the SOEC also operate at relatively high temperatures (700-1000 ° C), which helps to offer a reduced consumption of electrical energy.