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Monodisperse magnesium hydride nanoparticles uniformly self-assembled on graphene

Journal Article


Abstract


  • Magnesium-based hydrides represent a particularly promising

    candidate for hydrogen storage because of their high gravimetric

    and volumetric hydrogen capacities, high abundance

    (≈2.5% of Earth’s surface composition, and virtually in

    unlimited amounts in sea water), low cost, nontoxicity, and

    high safety. [ 1 ] Their thermodynamic stability, the slow kinetics

    of their reversible H 2 storage reaction, and their inherent low

    thermal conductivity, however, signifi cantly obstruct their

    practical application in fuel cells. [ 2,3 ] To date, one of the most

    effective techniques to relieve the kinetic barrier and/or thermodynamics

    stability of Mg-based hydrides is nanostructuring, [ 4 ]

    which could directly result in a larger surface-to-volume ratio

    of the particles, shorter solid-state diffusion distances for

    hydrogen, and/or decreased thickness of the H 2 -impermeable

    layer of MgO. [ 5,6 ] Extensive experimental and theoretical studies

    have recently demonstrated that decreasing the particle size

    is also capable of thermodynamically destabilizing Mg-based

    hydrides, leading to a further enhancement of hydrogen storage

    performance.

Authors


Publication Date


  • 2015

Citation


  • Xia, G., Tan, Y., Chen, X., Sun, D., Guo, Z., Liu, H., Ouyang, L., Zhu, M. & Yu, X. (2015). Monodisperse magnesium hydride nanoparticles uniformly self-assembled on graphene. Advanced Materials, 27 (39), 5981-5988.

Scopus Eid


  • 2-s2.0-84944274385

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1633

Has Global Citation Frequency


Number Of Pages


  • 7
  • 7

Start Page


  • 5981

End Page


  • 5988

Volume


  • 27

Issue


  • 39

Place Of Publication


  • Germany

Abstract


  • Magnesium-based hydrides represent a particularly promising

    candidate for hydrogen storage because of their high gravimetric

    and volumetric hydrogen capacities, high abundance

    (≈2.5% of Earth’s surface composition, and virtually in

    unlimited amounts in sea water), low cost, nontoxicity, and

    high safety. [ 1 ] Their thermodynamic stability, the slow kinetics

    of their reversible H 2 storage reaction, and their inherent low

    thermal conductivity, however, signifi cantly obstruct their

    practical application in fuel cells. [ 2,3 ] To date, one of the most

    effective techniques to relieve the kinetic barrier and/or thermodynamics

    stability of Mg-based hydrides is nanostructuring, [ 4 ]

    which could directly result in a larger surface-to-volume ratio

    of the particles, shorter solid-state diffusion distances for

    hydrogen, and/or decreased thickness of the H 2 -impermeable

    layer of MgO. [ 5,6 ] Extensive experimental and theoretical studies

    have recently demonstrated that decreasing the particle size

    is also capable of thermodynamically destabilizing Mg-based

    hydrides, leading to a further enhancement of hydrogen storage

    performance.

Authors


Publication Date


  • 2015

Citation


  • Xia, G., Tan, Y., Chen, X., Sun, D., Guo, Z., Liu, H., Ouyang, L., Zhu, M. & Yu, X. (2015). Monodisperse magnesium hydride nanoparticles uniformly self-assembled on graphene. Advanced Materials, 27 (39), 5981-5988.

Scopus Eid


  • 2-s2.0-84944274385

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1633

Has Global Citation Frequency


Number Of Pages


  • 7
  • 7

Start Page


  • 5981

End Page


  • 5988

Volume


  • 27

Issue


  • 39

Place Of Publication


  • Germany