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Registration Number

0212U000538, 0111U004607 , R & D reports

Title

Development of multi-component composite materials on the basis of light hydride forming metals for efficient hydrogen storage

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Head

Zavaliy Ihor Yulianovych,

Registration Date

21-02-2012

Organization

Karpenko Physico-Mechanical Institute of the National Academy of Science of Ukraine

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New hydrogen absorbing composite materials of magnesium with catalytic additives for hydrogen storage applications have been synthesized. Hydrogen thermal desorption and absorption properties of the series of new Mg-based composite materials (Mg Ti(Zr)4Fe2Ox suboxide, Mg Ti, Mg TiO2, etc.) were studied. It was shown that these additives (titanium, titanium oxide and intermetallic compounds based on titanium and zirconium) have a catalytic effect on the processes of hydrogenation-dehydrogenation of magnesium. The synthesized hydride composites Mg-Ti, Mg-TiO2, Mg-Ti4-xFe2+xOy were characterized by X-ray phase and microstructural analyses. An isothermal section of phase diagram at 500 C was build for the Mg-Ti-Ni system; the existence of Mg3TiNi2 compound was confirmed and the existence of solid solution MgxTi1-2/3xNi1-1/3x (where x?0.5) was found. An interaction of selected ternary alloys with hydrogen was studied and optimum compositions for efficient hydrogen storage have been found

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Березовець Василь Васильович
Денис Роман Володимирович
Рябов Олександр Броніславович