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Information × Registration Number 0210U006958, 0110U004569 , R & D reports Title Development of novel hydriding Mg-, Ti- and REM-based materials for efficient accumulation and transportation of hydrogen popup.stage_title Head Zavaliy Ihor Yulianovych, Registration Date 28-12-2010 Organization Karpenko Physico-Mechanical Institute of the National Academy of Science of Ukraine popup.description2 A number of Mg-containing IMC of the REM-Mg-Co(Ni) have been studied during the 5th stage of the project. New intermetallic compounds of the AB2 type with the structure of Laves phase and AB3 with PuNi3-type structure have been synthesised, their hydrogen sorption-desorption properties have been studied. Synchrotron X-ray structure and neutron diffraction analyses have been used to analyse structures of hydrides of the REMMgCo4, REMMgNi4, REM2MgCo9 intermetallic compounds (REM = Y,Ce,Nd). The structure of the cubic ?-CeMgCo4H4 hydride determined on the basis of powder neutron diffraction has been analised in the work. Measurement of absorption-desorption isotherms revealed that such compounds absorb and desorb hydrogen at temperatures close to 25 °C and under pressures in the 0.1-100 bar range, and their reversible hydrogen storage capacity is from 1.0 (REMMgNi4H4) to 1.6 wt.% (REMMgCo4H7). In contrast to corresponding binary REM(Ni,Co)2 and REM(Ni,Co)3 intermetallics new Mg-containing compounds are stable toward hydrogen induced amorphisation and disproportionation, which allows to propose them as hydrogen storage materials. Product Description popup.authors Березовець Василь Васильович Денис Роман Володимирович Ковальчук Ігор Васильович Рябов Олеквандр Броніславович Федоров Валерій Васильович popup.nrat_date 2020-04-02 Close