Structural characteristics of Ti4Fe2Ox and their connection with hydrogen absorption

Scanning electron microscopy and X-ray diffraction are used to study the mo rphology of particles of oxygen-stabilized Ti4Fe2Ox (x = 0.5 and 1.0) powde r and the lattice parameters of these compounds Hydrogen absorption during the first hydrogenation-dehydrogenation cycles is investigated The time cha racteristics of hydrogen absorption and the reversible hydrogenation capaci ty are determined. The correlation between absorption and structural charac teristics is established. This correlation is sensitive to the oxygen conte nt in the compound.