The decomposition of LiAlD4 studied by in-situ X-ray and neutron diffraction
2003; Elsevier BV; Volume: 351; Issue: 1-2 Linguagem: Inglês
10.1016/s0925-8388(02)01021-6
ISSN1873-4669
AutoresH.W. Brinks, Bjørn C. Hauback, Poul Norby, Helmer Fjellvåg,
Tópico(s)Ammonia Synthesis and Nitrogen Reduction
ResumoThe decomposition of LiAlD4 was studied by thermal desorption spectroscopy and neutron and synchrotron X-ray in-situ diffraction. The first two reaction stages (3LiAlD4=Li3AlD6+2Al+3D2 and Li3AlD6=3LiD+Al+32D2) were confirmed. No other intermediate phases were observed. Both reactions are very heat-rate dependent. The lowest temperature measured for complete reactions were 112 and 127 °C, respectively. Based on refinements of the unit-cell dimensions, neither LiAlD4 nor Li3AlD6 lose any D2 prior to their thermal decompositions.
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