Core shell structure for solid gas synthesis of LiBD4
- Core shell structure for solid gas synthesis of LiBD4
- O. Friedrichs; 김지우; A. Remhof; D. Wallacher; A. Hoser; 조영환; 오규환; A. Zuttel
- hydrogen storage; complex hydrides; neutron diffraction; microstruture analysis
- Issue Date
- Physical chemistry chemical physics : PCCP
- VOL 12, NO 18, 4600-4603
- 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.
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