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posted by janrinok on Wednesday December 27 2017, @06:37PM   Printer-friendly
from the its-a-gas dept.

A joint research team, affiliated with UNIST has introduced the Hybrid-Solid Electrolysis Cell (Hybrid-SOEC) system with highest reported electrochemical performance in hydrogen production. The proposed system has attracted much attention as a new promising option for the cost-effective and highly-efficient hydrogen production, as it shows excellent performance compared with other water-electrolysis systems.

This breakthrough has been led by Professor Guntae Kim in the School of Energy and Chemical Engineering at UNIST in collaboration with Professor Tak-Hyoung Lim of Korea Institute of Energy Research (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 solid-state. They are strongly desired as novel candidates for the hydrogen production, as they require no need to replenish lost electrolytes, while eliminating the corrosion problems. Besides, SOECs also operate at relatively high temperatures (700-1000 °C), which helps to offer reduced electrical energy consumption.

Professor Kim and his research team have been seeking ways to improve energy efficiency of hydrogen production, using SOEC. In the study, the research team has demonstrated the novel concept of Hybrid-SOEC based on the mixed ionic conducting electrolyte, allowing water electrolysis to be occurred at both hydrogen and air electrodes.

[...] The layered perovskite with excellent electrochemical properties was used as the electrode of Hybrid-SOEC. By adding an excellent electrode material on mixed ionic conducting electrolyte, resulting in enhanced electrochemical performance. As a result, the corresponding yields of hydrogen produced were 1.9 L per hour at a cell voltage of 1.5 V at 700 °C. This is four times higher hydrogen production efficiency than the existing high-efficient water electrolytic cells.


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  • (Score: 1, Insightful) by Anonymous Coward on Wednesday December 27 2017, @07:34PM (1 child)

    by Anonymous Coward on Wednesday December 27 2017, @07:34PM (#614844)

    If you spend enough money on something not outlawed by physics, you will eventually get something out of it.

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  • (Score: 0) by Anonymous Coward on Thursday December 28 2017, @05:22PM

    by Anonymous Coward on Thursday December 28 2017, @05:22PM (#615167)

    maybe if you can trick something into thinking that it swallowed a proton but in reality it didn't so you get to keep the proton but the
    something that thought that it did, reacts by emitting something heavy that also happens to be a conglomerate of neutrons and (more) protons?
    i don't yet know were to fetch the extra electron to neutralize the "excess" proton ... to eventually get hydrogen.

    it seems reversing the time-arrow will in 20 billion years or whatnot leave you with a hot soup of hydrogen(?) so the process could be called "deconstruction of the universe without reversing the time-arrow"?

    i assume it would be more fun to watch this then acctually, climbing back on trees, then back down, then back into the ocean etc etc ...