Skip to the content

Pressure-dependent deuterium reaction pathways in the Li-N-D system

Bull, DJ, Weidner, E, Shabalin, I, Telling, MTF, Jewell, CM, Gregory, DH and Ross, DK 2010, 'Pressure-dependent deuterium reaction pathways in the Li-N-D system' , Physical Chemistry Chemical Physics, 12 , pp. 2089-2097.

[img] PDF - Published Version
Restricted to Repository staff only

Download (1MB) | Request a copy

Abstract

Neutron diffraction data from in situ deuteration and dedeuteration of Li3N are presented under different pressure regimes, whereby reaction pathways differing from the widely reported stoichiometric pathway of Li3N + 2D22Li2ND + LiD + D22LiND2 + 2LiD are observed. At sufficiently high pressures, where the deuterium chemical potential is comparable with the heat of amide formation, the reaction appears to be driven straight to the amide plus deuteride phase mixture. At lower pressures, a cubic phase exhibiting a concentration-dependent variation in lattice parameter is observed. In dedeuteration, two sets of reflections from cubic structures with distinct lattice parameters are observed, both of which exhibit a continual decrease in cell volume. The reaction pathways are discussed in terms of the compositional variation.

Item Type: Article
Themes: Subjects / Themes > Q Science
Subjects outside of the University Themes
Schools: Colleges and Schools > College of Science & Technology > School of Computing, Science and Engineering > Materials & Physics Research Centre
Colleges and Schools > College of Science & Technology
Colleges and Schools > College of Science & Technology > School of Computing, Science and Engineering
Journal or Publication Title: Physical Chemistry Chemical Physics
Publisher: Royal Society of Chemistry
Refereed: Yes
ISSN: 1463-9076
Depositing User: Prof D. Keith Ross
Date Deposited: 25 Nov 2010 18:02
Last Modified: 04 Jun 2014 07:30
URI: http://usir.eprints.org/id/eprint/12130

Actions (login required)

Edit record (repository staff only) Edit record (repository staff only)

Downloads

Downloads per month over past year