Paper
Effect of Synthesis Parameters on the Hydrogen Desorption of MgH2/C composite Prepared Using Organo-magnesium
- Authors:
- Muxina Konarova; Jorge Norberto Beltramini; Gao Qing Lu; Akshat Tanksale
- Abstract
- The MgH2/C composite can be synthesized through decomposition of an organo-magnesium precursor under hydrogen pressure. Samples were synthesized at 250°C for 30 min, 2h and 4 h under 2MPa hydrogen pressure, respectively. XRD patterns of the MgH2/C composite exhibit pure MgH2 phase with tetragonal structure. Morphology of the MgH2/C composite exhibits porous nanostructure and shape of resultant particles varies with the synthesis time. TPD spectra of a sample synthesized at 250°C for 4h shows remarkable decrease in onset hydrogen release temperature. MgH2/C composite prepared by using organo-magnesium precursor decomposes (Tmax=325°C) at relatively lower temperature than the MgH2/C prepared by ball-milling (Tmax=380°C).
- Keywords
- composite material, hydrogen storage, organo-magnesium, TPD measurement
- StartPage
- 27
- EndPage
- 32
- Doi