%0 journal article %@ 1359-6462 %A Friedrichs, O.,Klassen, T.,Sanchez-Lopez, J.S.,Bormann, R.,Fernandez, A. %D 2006 %J Scripta Materialia %N 7 %P 1293-1297 %R doi:10.1016/j.scriptamat.2005.12.011 %T Hydrogen sorption improvement of nanocrystalline MgH2 by Nb2O5 nanoparticles %U https://doi.org/10.1016/j.scriptamat.2005.12.011 7 %X The influence of Nb2O5 nanoparticles (15 nm) as an additive for mechanical milling on the hydrogen sorption kinetics of MgH2 was investigated. By using nanometric Nb2O5, a significant reduction of milling time (200 times shorter) with a decrease of desorption temperature by 60 °C were observed in comparison to its micrometric form. X-ray diffraction and hydrogen sorption measurements led to the proposal of two possible mechanisms for the hydrogen sorption based on an intimate contact between MgH2 and Nb2O5.