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Hydrogen absorption and desorption properties of a novel ScNiAl alloy

Sobkowiak, Adam; Angstrom, Jonas; Nielsen, Thomas Kollin; Cerenius, Yngve LU ; Jensen, Torben R. and Sahlberg, Martin (2011) In Applied Physics A: Materials Science & Processing 104(1). p.235-238
Abstract
A new hydrogen absorbing material has been discovered, ScNiAl, which can store 1.5 wt.% hydrogen reversibly. In this compound, hydrogen absorption is a two-step process; solid solution of hydrogen at temperatures below 180A degrees C and decomposition into ScH2 and NiAl at higher temperatures. Detailed analysis of the hydrogen absorption/desorption has been performed using in situ synchrotron radiation powder X-ray diffraction and thermal desorption spectroscopy. The apparent activation energy for hydrogen desorption was determined to be 182 kJ/mol and the material is stable during cycling.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Applied Physics A: Materials Science & Processing
volume
104
issue
1
pages
235 - 238
publisher
Springer
external identifiers
  • wos:000291652600034
  • scopus:79959246781
ISSN
1432-0630
DOI
10.1007/s00339-010-6116-z
language
English
LU publication?
yes
id
326ce87b-3ec7-468d-9731-82b674dac8e8 (old id 2056866)
date added to LUP
2011-07-26 10:18:45
date last changed
2017-01-01 03:21:40
@article{326ce87b-3ec7-468d-9731-82b674dac8e8,
  abstract     = {A new hydrogen absorbing material has been discovered, ScNiAl, which can store 1.5 wt.% hydrogen reversibly. In this compound, hydrogen absorption is a two-step process; solid solution of hydrogen at temperatures below 180A degrees C and decomposition into ScH2 and NiAl at higher temperatures. Detailed analysis of the hydrogen absorption/desorption has been performed using in situ synchrotron radiation powder X-ray diffraction and thermal desorption spectroscopy. The apparent activation energy for hydrogen desorption was determined to be 182 kJ/mol and the material is stable during cycling.},
  author       = {Sobkowiak, Adam and Angstrom, Jonas and Nielsen, Thomas Kollin and Cerenius, Yngve and Jensen, Torben R. and Sahlberg, Martin},
  issn         = {1432-0630},
  language     = {eng},
  number       = {1},
  pages        = {235--238},
  publisher    = {Springer},
  series       = {Applied Physics A: Materials Science & Processing},
  title        = {Hydrogen absorption and desorption properties of a novel ScNiAl alloy},
  url          = {http://dx.doi.org/10.1007/s00339-010-6116-z},
  volume       = {104},
  year         = {2011},
}