title: In situ X-ray Raman spectroscopy of LiBH4.
abstract: X-Ray Raman Spectroscopy (XRS) is used to study the electronic properties of bulk lithium borohydride (LiBH(4)) and LiBH(4) in porous carbon nano-composites (LiBH(4)/C) during dehydrogenation. The lithium (Li), boron (B) and carbon (C) K-edges are studied and compared with calculations of the starting material and intermediate compounds. Comparison of the B and C K-edge XRS spectra of the as-prepared samples with rehydrogenated samples shows that the B and C electronic structure is largely regained after rehydrogenation. Both Li and C K-edge spectra show that during dehydrogenation, part of the Li intercalates into the porous carbon. This study shows that XRS in combination with calculations is a promising tool to study the electronic properties of nano-crystalline light-weight materials for energy storage.
authors.affiliation: Department of Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 23584 CG Utrecht, The Netherlands. p.s.miedema@gmail.com
authors.forename: Piter S
authors.initials: PS
authors.lastname: Miedema
authors.forename: Peter
authors.initials: P
authors.lastname: Ngene
authors.forename: Ad M J
authors.initials: AM
authors.lastname: van der Eerden
authors.forename: Tsu-Chien
authors.initials: TC
authors.lastname: Weng
authors.forename: Dennis
authors.initials: D
authors.lastname: Nordlund
authors.forename: Dimosthenis
authors.initials: D
authors.lastname: Sokaras
authors.forename: Roberto
authors.initials: R
authors.lastname: Alonso-Mori
authors.forename: Amélie
authors.initials: A
authors.lastname: Juhin
authors.forename: Petra E
authors.initials: PE
authors.lastname: de Jongh
authors.forename: Frank M F
authors.initials: FM
authors.lastname: de Groot
mesh_terms: D001894:Borohydrides / Q000737:chemistry*; D018020:Lithium Compounds / Q000737:chemistry*; D037742:Nanotubes, Carbon / Q000737:chemistry; D016062:Porosity; D013059:Spectrum Analysis, Raman; D013499:Surface Properties
chemical_list: D001894:Borohydrides; D018020:Lithium Compounds; D037742:Nanotubes, Carbon; C040936:lithium borohydride