In situ X-ray Raman spectroscopy of LiBH4

Piter S. Miedema; Peter Ngene; Ad M. J. van der Eerden; Tsu-Chien Weng; Dennis Nordlund; Dimosthenis Sokaras; Roberto Alonso-Mori; Amelie Juhin; Petra E. de Jongh; Frank M. F. de Groot

doi:10.1039/c2cp24025d

In situ X-ray Raman spectroscopy of LiBH4

Piter S. Miedema^*, Peter Ngene, Ad M. J. van der Eerden, Tsu-Chien Weng, Dennis Nordlund, Dimosthenis Sokaras, Roberto Alonso-Mori, Amelie Juhin, Petra E. de Jongh, Frank M. F. de Groot

^*Corresponding author for this work

Sub Inorganic Chemistry and Catalysis

Stanford University

Research output: Contribution to journal › Article › Academic › peer-review

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.

Original language	English
Pages (from-to)	5581-5587
Number of pages	7
Journal	Physical Chemistry Chemical Physics
Volume	14
Issue number	16
DOIs	https://doi.org/10.1039/c2cp24025d
Publication status	Published - 2012

Keywords

K-EDGE XANES
ABSORPTION SPECTROSCOPY
HYDROGEN
SCATTERING
DECOMPOSITION
MICROSCOPY
DEPENDENCE
SPECTRA
XAS

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10.1039/c2cp24025d

C2CP24025D
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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 (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.",

keywords = "K-EDGE XANES, ABSORPTION SPECTROSCOPY, HYDROGEN, SCATTERING, DECOMPOSITION, MICROSCOPY, DEPENDENCE, SPECTRA, XAS",

author = "Miedema, {Piter S.} and Peter Ngene and {van der Eerden}, {Ad M. J.} and Tsu-Chien Weng and Dennis Nordlund and Dimosthenis Sokaras and Roberto Alonso-Mori and Amelie Juhin and {de Jongh}, {Petra E.} and {de Groot}, {Frank M. F.}",

year = "2012",

doi = "10.1039/c2cp24025d",

language = "English",

volume = "14",

pages = "5581--5587",

journal = "Physical Chemistry Chemical Physics",

issn = "1463-9076",

publisher = "Royal Society of Chemistry",

number = "16",

}

TY - JOUR

T1 - In situ X-ray Raman spectroscopy of LiBH4

AU - Miedema, Piter S.

AU - Ngene, Peter

AU - van der Eerden, Ad M. J.

AU - Weng, Tsu-Chien

AU - Nordlund, Dennis

AU - Sokaras, Dimosthenis

AU - Alonso-Mori, Roberto

AU - Juhin, Amelie

AU - de Jongh, Petra E.

AU - de Groot, Frank M. F.

PY - 2012

Y1 - 2012

N2 - 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.

AB - 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.

KW - K-EDGE XANES

KW - ABSORPTION SPECTROSCOPY

KW - HYDROGEN

KW - SCATTERING

KW - DECOMPOSITION

KW - MICROSCOPY

KW - DEPENDENCE

KW - SPECTRA

KW - XAS

U2 - 10.1039/c2cp24025d

DO - 10.1039/c2cp24025d

M3 - Article

SN - 1463-9076

VL - 14

SP - 5581

EP - 5587

JO - Physical Chemistry Chemical Physics

JF - Physical Chemistry Chemical Physics

IS - 16

ER -

In situ X-ray Raman spectroscopy of LiBH4

Abstract

Keywords

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