Intermetallic Materials for High-Capacity Hydrogen Storage Systems.

In this article, we provide an overview of hydrogen storage materials, taking our previous results as examples. Towards the end of the paper, we present a case study in order to highlight the effects of substitutional alloying, compositional additives, and nanostructuring on the hydrogen sorption properties of magnesium-based intermetallics. Specifically, partial substitution of Mg by Li and d-elements by p-elements leads to structural changes, inducing disorder and the formation of high-entropy alloys.

Crystal, electronic structure and hydrogenation properties of the MgNiGe cluster phase with a new type of polyhedron.

The ternary germanide MgNiGe (cubic, space group Fm-3m, cF116) belongs to the structural family based on the ThMn-type. The Ge1 and Ge2 atoms fully occupy the 4a (m-3m symmetry) and 24d (m.mm) sites, respectively.

Synthesis, crystal structure and hydrogenation properties of MgLiB ( = 1.11, = 0.40).

The ternary magnesium/lithium boride, MgLiB ( = 1.11, = 0.40, idealized formula MgLiB), crystallizes as its own structure type in 422, which is closely related to the structural family comprising α-AlB, BeAlB and tetra-gonal β-boron.

A new ternary derivative of the Laves phases in the Mg-Co-Ga system.

Crystal structures of MgCoGa, MgCoGa and MgCoGa phases from the Mg-Co-Ga system were investigated using single-crystal diffraction. These structures belong to the family of so-called Laves phases. Hexagonal MgCoGa crystallizes as a disordered phase within the MgZn structure type.

TbNdZnNi (x = 0.5, y = 4.83): a new intermetallic with a maximum disordered structure and its hydrogen storage properties.

The ternary TbNdZnNi (x = 0.5, y = 4.83) disordered phase belongs to the structural family based on the rhombohedral ThZn structure type.