Cobalt-catalyzed hydrogen desorption from the LiNH2-LiBH4 system
Journal
Dalton transactions (Cambridge, England : 2003)
Journal Issue
18
Pages
2395
Date Issued
2008-05-14
Author(s)
Abstract
A doping of 5 wt% CoCl2 considerably decreases the dehydrogenation temperature of a mixture of LiNH2 and LiBH4. More that 8 wt% of hydrogen can be released at ca. 155 degrees C. X-Ray absorption near edge structure (XANES) spectroscopy indicated the formation of metallic Co after ball milling CoCl2 with LiNH2 and LiBH4. Extended X-ray absorption fine structure (EXAFS) spectroscopy measurements revealed that Co particles have poor crystallinity and are finely dispersed in the sample, which could lead to a high catalytic efficiency.
Subjects
CRYSTAL-STRUCTURE; STORAGE MATERIALS; LITHIUM AMIDE; HYDRIDE; RELEASE; LIB0.33N0.67H2.67; BOROHYDRIDE; GENERATION; IMIDES
Publisher
ROYAL SOC CHEMISTRY
Type
journal article