Tohoku University Technology:Low environmental impact alkaline water electrolysis system: T21-368
The alkaline water electrolysis system to suppress production of harmful substances
To realize a low-carbon society, alkaline water electrolysis equipment, which uses renewable energy to electrolyze water and produce hydrogen, is attracting attention. However, the nickel (Ni) electrode used for the anode of conventional alkaline water electrolysis equipment degrade under fluctuating electric power derived from renewable energy. In addition, stainless steel which is one of the alternative anode material for Ni have the problem that chromium elute into the alkaline electrolyte and generate toxic hexavalent Cr during the electrolysis. In the invention, in order to solve the above problems, a certain ingenuity has been applied to solve the conventional problem of electrode performance degradation, and the dissolution amount of Cr has been successfully suppressed.
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The revenue generated from technology transfer is reinvested as new research funding for universities and researchers, and is utilized to create further research outcomes. To ensure the smooth operation of this cycle, known as the "Intellectual Creation Cycle," we will vigorously promote technology transfer. The types of seeds we handle include patents, know-how, databases, and programs. We have established a collaborative framework by signing basic technology transfer agreements with the following universities (as of June 1, 2025): Tohoku University, Hirosaki University, Iwate University, Akita University, Fukushima University, Yamagata University, Tohoku Gakuin University, Iwate Medical University, Fukushima Medical University, Aizu University, Miyagi University, Hokkaido University, Muroran Institute of Technology, and Showa Medical University.


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