Hydrogen absorption and desorption properties of a novel ScNiAl alloy
2011 (English)In: Applied Physics A: Materials Science & Processing, ISSN 0947-8396, E-ISSN 1432-0630, Vol. 104, no 1, 235-238 p.Article in journal (Refereed) Published
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.
Place, publisher, year, edition, pages
2011. Vol. 104, no 1, 235-238 p.
Natural Sciences Inorganic Chemistry
Research subject Chemistry with specialization in Inorganic Chemistry
IdentifiersURN: urn:nbn:se:uu:diva-156009DOI: 10.1007/s00339-010-6116-zISI: 000291652600034OAI: oai:DiVA.org:uu-156009DiVA: diva2:429787