Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1281744 | International Journal of Hydrogen Energy | 2013 | 5 Pages |
In present paper, different sizes of CeO2 nanoparticles were synthesized by ball milling and their effect on the absorption kinetics and decomposition temperature of MgH2 was studied. It was found that a small amount of admixing of the above said catalysts with MgH2 exhibits improved hydrogen storage properties. Among these different sizes of CeO2 nanoparticles, 2 weight % admixed CeO2 with a particle size of ∼10–15 nm led to decrease in desorption temperature by ∼50 K. Moreover, it also shows 1.5 times better absorption kinetics with respect to pure MgH2. The samples were characterized using SEM, TEM and XRD techniques. The hydrogenation/dehydrogenation properties were measured by gas reaction controller.
► Effect of different sized CeO2 NP on the hydrogenation behaviour of nano MgH2. ► The suitable mechanism based on morphology of catalyst particles has been provided. ► Improvement in hydrogenation due to the 10–15 nm nanoparticles of CeO2 catalyst.