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Issue 16, 2012
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In situX-ray Raman spectroscopy of LiBH4

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Abstract

X-Ray Raman Spectroscopy (XRS) is used to study the electronic properties of bulk lithium borohydride (LiBH4) and LiBH4 in porous carbon nano-composites (LiBH4/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.

Graphical abstract: In situ X-ray Raman spectroscopy of LiBH4

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Supplementary files

Article information


Submitted
16 Dec 2011
Accepted
27 Feb 2012
First published
27 Feb 2012

Phys. Chem. Chem. Phys., 2012,14, 5581-5587
Article type
Paper

In situ X-ray Raman spectroscopy of LiBH4

P. S. Miedema, P. Ngene, A. M. J. van der Eerden, T. Weng, D. Nordlund, D. Sokaras, R. Alonso-Mori, A. Juhin, P. E. de Jongh and F. M. F. de Groot, Phys. Chem. Chem. Phys., 2012, 14, 5581
DOI: 10.1039/C2CP24025D

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