Core shell structure for solid gas synthesis of LiBD4

Title
Core shell structure for solid gas synthesis of LiBD4
Authors
O. Friedrichs김지우A. RemhofD. WallacherA. Hoser조영환오규환A. Zuttel
Keywords
hydrogen storage; complex hydrides; neutron diffraction; microstruture analysis
Issue Date
2010-03
Publisher
Physical chemistry chemical physics : PCCP
Citation
VOL 12, NO 18, 4600-4603
Abstract
The formation of LiBD4 by the reaction of LiD in a diborane/hydrogen atmosphere was analysed by in situ neutron diffraction and subsequent microstructural and chemical analysis of the final product. The neutron diffraction shows that nucleation of LiBD4 already starts at temperatures of 100 ℃, i.e. in its low temperature phase (orthorhombic structure). However, even at higher temperatures the reaction is incomplete. We observe a yield of approximately 50% at a temperature of 185 ℃. A core shell structure of the grains, in which LiBD4 forms a passivation layer on the surface of the LiD grains, was found in the subsequent microstructural (electron microscopy) and chemical (electron energy loss spectrometry) analysis.
URI
http://pubs.kist.re.kr/handle/201004/37681
ISSN
1463-9076
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KIST Publication > Article
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