Hydrogen absorption and desorption properties of a novel ScNiAl alloy
Författare
Summary, in English
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.
Avdelning/ar
Publiceringsår
2011
Språk
Engelska
Sidor
235-238
Publikation/Tidskrift/Serie
Applied Physics A: Materials Science & Processing
Volym
104
Issue
1
Dokumenttyp
Artikel i tidskrift
Förlag
Springer
Ämne
- Physical Sciences
- Natural Sciences
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 1432-0630