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Hydrogen storage properties of Mg-BCC composite

Journal Article


Abstract


  • MgH2 with 10 wt% Ti0.4Mn0.22Cr0.1V0.28 (termed BCC for its body-centered cubic structure)

    nanocomposite was fabricated by ball milling using different ball-to-powder weight ratios.

    The X-ray diffraction patterns make it clear that pure Mg powder is partly transformed to

    MgH2, while by adding the BCC, its hydriding becomes complete. The scanning electron

    microscope images showed that the BCC particles were uniformly dispersed on the surface of

    the Mg particles. Differential scanning calorimetry traces of the samples showed that the

    addition of the BCC obviously decreases the desorption temperature, and an additional

    decrease is observed from increasing the ball-to-powder weight ratio. The hydriding/

    dehydriding and the pressure-composition isotherm curves indicate significant

    improvement in the absorption/desorption kinetics and the hydrogen storage capacity of

    MgH2 from both adding the BCC and increasing the ball-to-powder weight ratio. The results

    indicate that the BCC acts as a medium that facilitates hydrogen absorption during

    hydrogenation on Mg, thus improving hydrogen storage capacity and absorption/

    desorption kinetics.

Publication Date


  • 2009

Citation


  • Ranjbar, A. J., Guo, Z. P., Yu, X., Calka, A. & Liu, H. K. (2009). Hydrogen storage properties of Mg-BCC composite. International Journal of Green Energy, 6 (6), 607-615.

Scopus Eid


  • 2-s2.0-84897585197

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/3341

Has Global Citation Frequency


Number Of Pages


  • 8

Start Page


  • 607

End Page


  • 615

Volume


  • 6

Issue


  • 6

Place Of Publication


  • United States

Abstract


  • MgH2 with 10 wt% Ti0.4Mn0.22Cr0.1V0.28 (termed BCC for its body-centered cubic structure)

    nanocomposite was fabricated by ball milling using different ball-to-powder weight ratios.

    The X-ray diffraction patterns make it clear that pure Mg powder is partly transformed to

    MgH2, while by adding the BCC, its hydriding becomes complete. The scanning electron

    microscope images showed that the BCC particles were uniformly dispersed on the surface of

    the Mg particles. Differential scanning calorimetry traces of the samples showed that the

    addition of the BCC obviously decreases the desorption temperature, and an additional

    decrease is observed from increasing the ball-to-powder weight ratio. The hydriding/

    dehydriding and the pressure-composition isotherm curves indicate significant

    improvement in the absorption/desorption kinetics and the hydrogen storage capacity of

    MgH2 from both adding the BCC and increasing the ball-to-powder weight ratio. The results

    indicate that the BCC acts as a medium that facilitates hydrogen absorption during

    hydrogenation on Mg, thus improving hydrogen storage capacity and absorption/

    desorption kinetics.

Publication Date


  • 2009

Citation


  • Ranjbar, A. J., Guo, Z. P., Yu, X., Calka, A. & Liu, H. K. (2009). Hydrogen storage properties of Mg-BCC composite. International Journal of Green Energy, 6 (6), 607-615.

Scopus Eid


  • 2-s2.0-84897585197

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/3341

Has Global Citation Frequency


Number Of Pages


  • 8

Start Page


  • 607

End Page


  • 615

Volume


  • 6

Issue


  • 6

Place Of Publication


  • United States