Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1273112 | International Journal of Hydrogen Energy | 2010 | 8 Pages |
Abstract
In situ neutron diffraction was undertaken on stoichiometric 2LiBD4 : MgD2 and non-stoichiometric 0.3LiBD4:MgD2 with both ratios decomposed under 1 bar deuterium and under dynamic vacuum. The subsequent cycling behaviour under 100 bar D2 at 400 °C was investigated in situ. Analysis of the uptake through formation of deuterided products showed fast kinetics for the magnesium rich system, 0.3:1, with 90% deuteriding occurring within 10 min. This compares to only 60% deuteriding for the 2:1 sample after 4 h under similar conditions. These results demonstrate the strong influence of stoichiometry in the cycling kinetics compared to decomposition conditions, although the later determines the phase progression.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Tobias E.C. Price, David M. Grant, Vincent Legrand, Gavin S. Walker,