en
Scientific article
English

Insights into the Rb–Mg–N–H System: an Ordered Mixed Amide/Imide Phase and a Disordered Amide/Hydride Solid Solution

Published inInorganic Chemistry, vol. 57, no. 6, p. 3197-3205
Publication date2018
Abstract

The crystal structure of a mixed amide-imide phase, RbMgND2ND, has been solved in the orthorhombic space group Pnma (a = 9.55256(31), b = 3.70772(11) and c = 10.08308(32) Å). A new metal amidehydride solid solution, Rb(NH2)xH(1−x), has been isolated and characterized in the entire compositional range. The profound analogies, as well as the subtle differences, with the crystal chemistry of KMgND2ND and K(NH2)xH1−x are thoroughly discussed. This approach suggests that the comparable performances obtained using K- and Rb-based additives for the Mg(NH2)2-2LiH and 2LiNH2− MgH2 hydrogen storage systems are likely to depend on the structural similarities of possible reaction products and intermediates.

Keywords
  • Hydrogen storage
  • Amide
  • Powder diffraction
Research group
Funding
  • European Commission - Novel Complex Metal Hydrides for Efficient and Compact Storage of Renewable Energy as Hydrogen and Electricity [607040]
Citation (ISO format)
SANTORU, Antonio et al. Insights into the Rb–Mg–N–H System: an Ordered Mixed Amide/Imide Phase and a Disordered Amide/Hydride Solid Solution. In: Inorganic Chemistry, 2018, vol. 57, n° 6, p. 3197–3205. doi: 10.1021/acs.inorgchem.7b03232
Main files (1)
Article (Published version)
accessLevelRestricted
Identifiers
ISSN of the journal0020-1669
472views
0downloads

Technical informations

Creation06/04/2018 4:29:00 PM
First validation06/04/2018 4:29:00 PM
Update time03/15/2023 8:17:59 AM
Status update03/15/2023 8:17:58 AM
Last indexation01/17/2024 2:57:32 AM
All rights reserved by Archive ouverte UNIGE and the University of GenevaunigeBlack