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Hydrogen Sorption in the LiH-LiF-MgB2 System

Saldan, Ivan ; Schulze, Matthias ; Pistidda, Claudio ; Gosalawit-Utke, Rapee ; Zavorotynska, Olena ; Rude, Line H. ; Skibsted, Jorgen ; Haase, Dörthe LU ; Cerenius, Yngve LU and Jensen, Torben R. , et al. (2013) In Journal of Physical Chemistry C 117(33). p.17360-17366
Abstract
A composite material in the LiH-LiF-MgB2 system has been synthesized by high-energy ball milling. Some peaks in addition to that of the binary 2LiH-MgB2 and 2LiF-MgB2 systems are observed for the composite material by high-pressure differential scanning calorimetry (HP-DSC), indicating the formation of intermediate phases. In situ synchrotron radiation powder X-ray diffraction (SR-PXD) performed at 60 bar of H-2 and 390 degrees C shows a superposition of both reaction pathways that are typical for 2LiH-MgB2 and 2LiF-MgB2. After hydrogen absorption of the LiH-LiF-MgB2 composite the vibrational modes of LiBH4 were observed by attenuated total reflection infrared (ATR-IR) spectroscopy. The F-19 MAS NMR spectrum of the LiF-LiBH4 sample after... (More)
A composite material in the LiH-LiF-MgB2 system has been synthesized by high-energy ball milling. Some peaks in addition to that of the binary 2LiH-MgB2 and 2LiF-MgB2 systems are observed for the composite material by high-pressure differential scanning calorimetry (HP-DSC), indicating the formation of intermediate phases. In situ synchrotron radiation powder X-ray diffraction (SR-PXD) performed at 60 bar of H-2 and 390 degrees C shows a superposition of both reaction pathways that are typical for 2LiH-MgB2 and 2LiF-MgB2. After hydrogen absorption of the LiH-LiF-MgB2 composite the vibrational modes of LiBH4 were observed by attenuated total reflection infrared (ATR-IR) spectroscopy. The F-19 MAS NMR spectrum of the LiF-LiBH4 sample after heat treatment in hydrogen is strongly dominated by the centerband and spinning sidebands from LiF; in addition, a low-intensity resonance, very similar to that of [BF4](-) ion, is identified. (Less)
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Physical Chemistry C
volume
117
issue
33
pages
17360 - 17366
publisher
The American Chemical Society (ACS)
external identifiers
  • wos:000323593100069
  • scopus:84883146695
ISSN
1932-7447
DOI
10.1021/jp405856s
language
English
LU publication?
yes
id
4763bb31-98a6-4758-afd2-8ae7fca6e787 (old id 4062451)
date added to LUP
2016-04-01 10:23:27
date last changed
2022-01-25 22:46:48
@article{4763bb31-98a6-4758-afd2-8ae7fca6e787,
  abstract     = {{A composite material in the LiH-LiF-MgB2 system has been synthesized by high-energy ball milling. Some peaks in addition to that of the binary 2LiH-MgB2 and 2LiF-MgB2 systems are observed for the composite material by high-pressure differential scanning calorimetry (HP-DSC), indicating the formation of intermediate phases. In situ synchrotron radiation powder X-ray diffraction (SR-PXD) performed at 60 bar of H-2 and 390 degrees C shows a superposition of both reaction pathways that are typical for 2LiH-MgB2 and 2LiF-MgB2. After hydrogen absorption of the LiH-LiF-MgB2 composite the vibrational modes of LiBH4 were observed by attenuated total reflection infrared (ATR-IR) spectroscopy. The F-19 MAS NMR spectrum of the LiF-LiBH4 sample after heat treatment in hydrogen is strongly dominated by the centerband and spinning sidebands from LiF; in addition, a low-intensity resonance, very similar to that of [BF4](-) ion, is identified.}},
  author       = {{Saldan, Ivan and Schulze, Matthias and Pistidda, Claudio and Gosalawit-Utke, Rapee and Zavorotynska, Olena and Rude, Line H. and Skibsted, Jorgen and Haase, Dörthe and Cerenius, Yngve and Jensen, Torben R. and Spoto, Giuseppe and Baricco, Marcello and Taube, Klaus and Dornheim, Martin}},
  issn         = {{1932-7447}},
  language     = {{eng}},
  number       = {{33}},
  pages        = {{17360--17366}},
  publisher    = {{The American Chemical Society (ACS)}},
  series       = {{Journal of Physical Chemistry C}},
  title        = {{Hydrogen Sorption in the LiH-LiF-MgB2 System}},
  url          = {{http://dx.doi.org/10.1021/jp405856s}},
  doi          = {{10.1021/jp405856s}},
  volume       = {{117}},
  year         = {{2013}},
}