New electrolytic cell for hydrogen generation, developed by Toshiba

Toshiba has developed a new electrolytic cell for hydrogen generation.
It is used in a high temperature steam atmosphere.
Toshiba has already developed the electrolytic cell for hydrogen generation, which is operable at 900°C in the high temperature steam electrolysis process.
The electrolytic cell developed this time will operate at temperatures below 900°C.
It is a ceramic electrolytic element having a three-layer structure, which consists of a zirconia electrolyte and two electrodes layered on both major sides of the electrolyte. The structure of the electrolytic cell is substantially the same as that of the cell unit of the SOFC.
In operation, the ceramic electrolytic element is placed in a high temperature steam atmosphere, and voltage is applied to between the electrodes. Steam is electrolyzed at one electrode into H2 and oxygen ion (O2-). The O2- immigrates to the other electrode where it is released outside in the form of O2.
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