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Effect of different additives on the hydrogen storage properties of the MgH 2-LiAlH 4 destabilized system

Journal Article


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Abstract


  • The hydrogen storage properties of the MgH2-LiAlH4 (4 : 1) composite system with and without

    additives were studied. 5 wt.% of TiF3, NbF5, NiF2, CrF2, YF3, TiCl3?1/3AlCl3, HfCl4, LaCl3, CeCl3,

    and NdCl3, respectively, was added to the MgH2-LiAlH4 (4 : 1) mixture, and their catalytic effect was

    investigated. Temperature programmed desorption results show that addition of metal halides to the

    MgH2-LiAlH4 (4 : 1) composite system improves the onset desorption temperature. The hydrogen

    desorption properties of metal halide-doped MgH2-LiAlH4 (4 : 1) composites were also improved as

    compared to the undoped MgH2-LiAlH4 (4 : 1) composite. Furthermore, the activation energy and

    the change in enthalpy in the doped and undoped composite were measured by differential scanning

    calorimetry. In addition, the reaction pathway of the MgH2-LiAlH4 (4 : 1) composite system and the

    mechanisms that work in this composite during the de/re-hydrogenation process were determined by

    X-ray diffraction.

Publication Date


  • 2011

Citation


  • Ismail, M., Zhao, Y., Yu, X. & Dou, S. Xue. (2011). Effect of different additives on the hydrogen storage properties of the MgH 2-LiAlH 4 destabilized system. RSC Advances, 1 (3), 408-414.

Scopus Eid


  • 2-s2.0-84859308431

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/editor.cgi?window=abstract&article=6108&context=engpapers

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/3177

Number Of Pages


  • 6

Start Page


  • 408

End Page


  • 414

Volume


  • 1

Issue


  • 3

Abstract


  • The hydrogen storage properties of the MgH2-LiAlH4 (4 : 1) composite system with and without

    additives were studied. 5 wt.% of TiF3, NbF5, NiF2, CrF2, YF3, TiCl3?1/3AlCl3, HfCl4, LaCl3, CeCl3,

    and NdCl3, respectively, was added to the MgH2-LiAlH4 (4 : 1) mixture, and their catalytic effect was

    investigated. Temperature programmed desorption results show that addition of metal halides to the

    MgH2-LiAlH4 (4 : 1) composite system improves the onset desorption temperature. The hydrogen

    desorption properties of metal halide-doped MgH2-LiAlH4 (4 : 1) composites were also improved as

    compared to the undoped MgH2-LiAlH4 (4 : 1) composite. Furthermore, the activation energy and

    the change in enthalpy in the doped and undoped composite were measured by differential scanning

    calorimetry. In addition, the reaction pathway of the MgH2-LiAlH4 (4 : 1) composite system and the

    mechanisms that work in this composite during the de/re-hydrogenation process were determined by

    X-ray diffraction.

Publication Date


  • 2011

Citation


  • Ismail, M., Zhao, Y., Yu, X. & Dou, S. Xue. (2011). Effect of different additives on the hydrogen storage properties of the MgH 2-LiAlH 4 destabilized system. RSC Advances, 1 (3), 408-414.

Scopus Eid


  • 2-s2.0-84859308431

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/editor.cgi?window=abstract&article=6108&context=engpapers

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/3177

Number Of Pages


  • 6

Start Page


  • 408

End Page


  • 414

Volume


  • 1

Issue


  • 3