Registration Number
0224U001331,
0123U103492
, R & D reports
Title
Metal hydrides based on modified magnesium alloys for modern high-capacity hydrogen storage systems
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Head
Pavliuk Volodymyr V., д.х.н.
Registration Date
21-01-2024
Organization
Ivan Franko National University of Lviv
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BATTERIES, COMPLEX HYDRIDES, ELECTRODE MATERIALS, HYDROGEN STORAGE SYSTEMS, INTERMETALLIC COMPOUNDS, MAGNESIUM ALLOYS, METAL HYDRIDES.
Research object: new materials for hydrogen accumulation, storage and transportation systems, and metal hydride batteries. Purpose of work: the creation of new high-tech materials for hydrogen generation, storage and transportation systems based on the proposed concept of maximum disordering of high-entropy intermetallic phases and structural modification, which will ensure high sorption capacity of hydrogen storage systems and cyclic stability of electrodes for metal hydride batteries. The developed materials will be extremely useful in the post-war reconstruction of Ukraine, particularly in the energy sector. Research methods: X-ray powder diffraction, X-ray single crystal diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy, electrochemical and gas-phase hydrogenation, electronic structure calculations; software for interpreting experimental results (WinCSD, FULLPROF, SHELX97, TB-LMTO-ASA, ZView software packages). For the first time, a systematic study of magnesium-containing alloys was carried out to create hydrogen sorption materials for systems of accumulation, storage and safe transportation of hydrogen, as well as the manufacture of electrodes for metal hydride batteries. The hydrogen sorption capacity of the developed metal hydrides reaches 1.8 wt. %, which is 10-15% higher than the capacity of analogues (LaNi5), and the cost is lower. The hydrogen sorption capacity of the developed complex hydrides reaches 9.6 wt. %, and their desorption temperature is 50-80 оC lower compared to magnesium. The specific energy capacity of the electrodes is within 170-180 Wh/kg. Alloys are environmentally friendly, fire- and explosion-proof.
Product Description
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Verbovytsky Yury V.
Grygoriy S. Dmytriv
Zaremba Oksana
Zelinska Oksana Ya.
Kordan Vasyl Mykhailovych
Viktoriia E. Milashius
Nytka Vitalii V.
Pavlyuk Nazar Volodymyrovych
Tarasiuk Ivan I
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2024-01-21
