Structural studies of the cycling and decomposition of Mg(NH3)6(BH4)2

DOI

Given its high hydrogen gravimetric density, ammonia may be utilised as a hydrogen carrier, and thus ammonia stores are an area of interest. It is known that Mg(BH4)2 takes up ammonia to form the adduct Mg(NH3)6(BH4)2, which decomposes to release 4 molar equivalents of ammonia at 80°C and then 7 molar equivalents of hydrogen at 125°C. We request 3 days on HRPD in conjunction with the IGAn apparatus and quartz reactor to investigate the interaction of fully isotopically enriched Mg(11BD4)2 with ammonia (ND3) gas, by simultaneous neutron diffraction and thermogravimetric analysis. These experiments will allow us to fully characterise the structure of the known phases of Mg(ND3)6(11BD4)2 and Mg(ND3)2(11BD4)2, identify any reaction intermediates, produce information as to the mechanism, decomposition pathway and the final decomposition product.

Identifier
DOI https://doi.org/10.5286/ISIS.E.24079758
Metadata Access https://icatisis.esc.rl.ac.uk/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatisis.esc.rl.ac.uk:inv/24079758
Provenance
Creator Dr Simon Johnson; Dr Martin Jones; Mr David Royse; Professor Bill David; Dr Alexander Pohl; Dr Sam Callear
Publisher ISIS Neutron and Muon Source
Publication Year 2013
Rights CC-BY Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Contact isisdata(at)stfc.ac.uk
Representation
Resource Type Dataset
Discipline Photon- and Neutron Geosciences
Temporal Coverage Begin 2010-05-10T08:39:09Z
Temporal Coverage End 2010-05-13T07:59:13Z