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PLENARY LECTURES AND VIP GUESTS
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Patrick Masset
Fraunhofer UMSICHT
Electrochemical Properties Of Lithium Hydride In Molten Chlorides
3rd Intl. Symp. on Sustainable Molten Salt and Ionic Liquid Processing
Back to Plenary Lectures »
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Abstract:
Lithium hydride (LiH) is an attractive material for some industrial applications (electrical energy production, hydrogen storage, metallic hydride formation in molten salts) due to its highly reducing character and its low molecular weight. However, lithium hydride is very sensitive to oxygen and moisture, which complicates its use in industrial processes and should be handled under protected atmosphere. In this work, the electrochemical properties of lithium hydride (LiH) in the LiCl-KCl molten eutectic were investigated at 425 °C using classical transient electrochemical techniques. The H2/H- redox system (n=1) was found reversible even if the produced hydrogen at the electrode escapes and does allow to reduce it partially only. The diffusion coefficient of hydride anions was found to be close to 2-3.10-5 cmAČ.s-1, whereas the apparent standard potential was determined to be close to 1.825 V vs. Ag/AgCl at 425 °C.
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