Abstract
The dehydrogenation kinetics of LiBH4 incorporated within various carbon nanotubes has been studied. It is demonstrated that the desorption kinetics of LiBH4 could be greatly promoted using a simple melt infiltration method and LiBH4 confined in modified multi-walled carbon nanotubes (MWCNTs) shows the best desorption kinetics. The structural properties of carbon nanotubes and confined samples are demonstrated by means of transmission electron microscopy, powder X-ray diffraction and Raman spectroscopy. The crystal structure of MWCNTs and single-walled carbon nanotubes (SWCNTs) are almost unchanged after ball milling. But high energy ball milling leads to a decrease in the average nanotube length and introduces a great amount of local disorder and structural defects in the CNTs, which may provide a considerable kinetic improvement.
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