Hydrogen is a clean and abundant source of fuel, but it still faces problems related to production efficiency, etc., on the road to becoming mainstream. The good news is that researchers from the University of Ulsan, KIER, and Sookmyung Women's University have developed a more efficient water electrolysis system. This technology is based on the existing "Solid Oxide Cell" (SOEC). The underlying principle is still to electrolyze water molecules into hydrogen and oxygen and collect them. The difference is that the Hybrid-SOEC system has been improved in electrodes and electrolytes - all replaced with solid ones! It has many advantages over liquid electrolyte systems. First, the liquid needs to be regularly filled; second, over time, the liquid will erode the rest of the system. In addition, solid-state electrolyzers can operate at high temperatures. This means that the new system is more energy efficient because it can convert heat into energy needed for electrolysis. The researchers used different electrolytes in the two main designs, one of which allowed only oxygen ions to pass through, while the other allowed only hydrogen ions to pass through. However, this "one-way street" limits the amount of hydrogen that can be produced by the device. In view of this, they have developed a brand-new Hybrid-SOEC system that utilizes a hybrid ion conductor to simultaneously transport negative oxygen ions and charged hydrogen ions (protons) to take full advantage of all the benefits of solid-state electrolyzers. Improve the efficiency of hydrogen production. Hybrid-SOEC uses mixed ion conductors and electrodes made of layered perovskite minerals and can produce 1.9 liters (0.5 gallons) of hydrogen per hour at a voltage of 1.5V and a temperature of 700°C (1292°F). The efficiency is More than four times the existing system. Details of this study have been published in the recently published Nano Energy journal. Concrete Fastening Tool,Concrete Nail Gun,Concrete Nails ,Concrete Anchors Yibin Heheng Technology Co.,Ltd , https://www.actuated.nl
Some members of the team, from left to right are Junyoung Kim, Professor Guntae Kim, and Ohhun Gwona. 
The principle diagram of Hybrid-SOEC efficient hydrogen production system