Effect of different sized CeO2 nano particles on decomposition and hydrogen absorption kinetics of magnesium hydride |
| |
| Authors: | Rajesh Kumar Singh T. Sadhasivam G.I. Sheeja P. Singh O.N. Srivastava |
| |
| Affiliation: | 1. Hydrogen Energy and Nanoscience Center, Department of Physics, Banaras Hindu University, Varanasi 221005, India;2. Department of Applied Physics, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India |
| |
| Abstract: | 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. |
| |
| Keywords: | Hydrogen storage materials Isothermal desorption Kinetics |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
