title: A mechanism for non-stoichiometry in the lithium amide/lithium imide hydrogen storage reaction.
abstract: We demonstrate, through structural refinement from synchrotron X-ray diffraction data, that the mechanism of the transformation between lithium amide and lithium imide during hydrogen cycling in the important Li-N-H hydrogen storage system is a bulk reversible reaction that occurs in a non-stoichiometric manner within the cubic anti-fluorite-like Li-N-H structure.
authors.affiliation: ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, Oxon OX11 0QX, UK. bill.david@rl.ac.uk
authors.forename: William I F
authors.initials: WI
authors.lastname: David
authors.forename: Martin O
authors.initials: MO
authors.lastname: Jones
authors.forename: Duncan H
authors.initials: DH
authors.lastname: Gregory
authors.forename: Catherine M
authors.initials: CM
authors.lastname: Jewell
authors.forename: Simon R
authors.initials: SR
authors.lastname: Johnson
authors.forename: Allan
authors.initials: A
authors.lastname: Walton
authors.forename: Peter P
authors.initials: PP
authors.lastname: Edwards