Interaction of ZrMo2 with hydrogen at high pressure

摘要

The interaction of hydrogen with ZrMo2 intermetallic compound at pressure up to 2500 bars has been studied. In ZrMo2-H-2 system desorption isotherms were measured and thermodynamic parameters of hydride phase decomposition were calculated. The structure of ZrMo2D4.0 deuteride has been investigated by X-ray and neutron diffraction methods. It was revealed that ordering of deuterium in the cubic lattice of ZrMo2 led to the formation of superstructure with tetragonal lattice. The occupancy of the positions of deuterium and metal atoms was determined. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.