Registration Number
0223U002895,
0119U102085
, R & D reports
Title
Development of physico-chemical principles of creation of high-density hydride-forming materials and their use in stationary storage systems of hydrogen and as electrodes for electrochemical systems of power direction
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Head
Solonin Yurii M., Доктор фізико-математичних наук
Registration Date
15-03-2023
Organization
Frantsevich Institute for Problems of Materials Science National Academy of Science of Ukraine
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By reactive grinding for 20 hours a mixture of powders MgH2 + 10% by weight. Mechanical alloys (MS) were synthesized for Ti (Ni) and hydrogen capacity, thermal stability and kinetics of hydrogen desorption were studied at a constant hydrogen pressure of 0.1 MPa using thermodesorption spectroscopy. It is established that the release time of all hydrogen at a constant temperature of 330 0С is reduced due to doping of Ti and Ni 6 and 16 times. The developed materials meet the international standards of high level for storage of hydrogen in stationary conditions with high hydrogen capacity (6,% of weight H2).
The method of argon arc melting obtained ABx alloys (x = 3.5 -4.2) and studied the effect of crystallization conditions on the structure, phase composition and complex of important electrochemical characteristics (activation, kinetics, capacity, stability of the formed hydrides). It was found that the alloys La3Ni9.7Mn0.5Al0.3Sou (y = 0; 0.7; 1.9), regardless of the crystallization conditions, contain two phases AB3 and AB5: with increasing stoichiometric index x the content of the phase type AB5 increases, which , which for the alloy La3Ni9.7Mn0.5Al0.3Со1.9 (АВ4,14) reaches 291 mA * h / h. The influence of different types of Nickel on the electrochemical characteristics of ZrNi1,2Mn0,5Cr0,2V0,1 alloy was studied in order to improve the activation rate and cyclic stability of ZrNiMnCrV alloys.
Product Description
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Ershova Olga G.
Galii Oksana Z.
Graivoronska Catherina O.
Krapivka Mykola O.
Solonin Yuriy M.
Tkach Vіra P.
Shcherbakova Larisa G.
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2023-03-15
