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    CaNi5-based alloys and nanoconfined NaAlH4 for solid-state hydrogen storage

    213614_Chumphongphan 2014.pdf (10.51Mb)
    Access Status
    Open access
    Authors
    Chumphongphan, Somwan
    Date
    2014
    Supervisor
    Dr Drew Sheppard
    Dr Mark Paskevicius
    Type
    Thesis
    Award
    PhD
    
    Metadata
    Show full item record
    School
    School of Science, Department of Imaging and Applied Physics
    URI
    http://hdl.handle.net/20.500.11937/1500
    Collection
    • Curtin Theses
    Abstract

    A simple mechanical ball-milling and annealing has been used to synthesize CaNi5-based alloys. Heat treatment at 800 ºC under vacuum results in the formation of a crystalline CaNi5 phase. CaNi4.9Al0.1 shows durability improvement by maintaining its initial hydrogen absorption capacity for 20 cycles performed at 85 ºC. NaAlH4 was confined within 2-3 nm pores in a carbon scaffold and shows significant improvement in the hydrogen desorption kinetics and thermodynamic properties compared to bulk NaAlH4.

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