Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1626879 | Journal of Alloys and Compounds | 2006 | 6 Pages |
Abstract
The composite metal hydride MgH2–MexOy powder was synthesized by high energy ball milling (MexOy = V2O5, Cr2O3, Al2O3, Fe2O3). The hydrogen absorption kinetics of composite metal hydride was determined by automated PCT measurements. The poor kinetics of MgH2 were greatly improved with an addition of oxide. In absorption, the catalytic effects of Al2O3 and Cr2O3 were remarkable at 300 °C with hydrogen capacity up to 4.09 and 4.02 wt%. At 250 and 200 °C, V2O5 showed that the fastest kinetics and hydrogen absorption capacities up to 3.2 and 2.25 wt%.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
K.S. Jung, E.Y. Lee, K.S. Lee,