Structural characterization of Mg3CrH∼6—a new high-pressure phase synthesized in a multi-anvil cell at 8 GPa

Hydrogen desorption properties of FCC super-lattice hydride Mg7NbHx prepared by ultra-high pressure techniques

“…High pressure hydrogen as high as giga-pascal (GPa) is generated in a multianvil cell on ultra-high pressure generating apparatus. This method yielded a number of new Mg-based hydrides containing alkaline earth [1,2], transition metals [3][4][5][6][7][8][9][10][11][12] and rare earth [11,[13][14][15].…”

A new ternary magnesium–titanium hydride Mg7TiH with hydrogen desorption properties better than both binary magnesium and titanium hydrides

“…However the hydrogen absorption and desorption kinetics are slow, necessitating higher temperature compared to other metal hydride systems. By reacting magnesium or magnesium hydride with the first row transition metals new hydrides based on transition metal-hydrido complexes have been synthesized and characterized, Mg 3 MnH 7 [1], Mg 3 MnH ∼6 [2,3] and Mg 3 CrH x [4,5]. More drastic improvement without reducing the advantageous storage properties is, however, required for practical applications.…”

Hydrogen sites analysed by X-ray synchrotron diffraction in Mg7TiH13–16 made at gigapascal high-pressures

“…The hydride phases were prepared at 6-8 GPa and 873 K with a cubic anvil press, a technique that has only been used to a small extent for investigating the occurrence of new metal hydrides. Details about desorption behavior and metal atom structures can be found in our previous papers [1][2][3][4][5]. The hydrogen atoms positions could not be determined because of their low X-ray scattering factor.…”