淡江大學機構典藏:Item 987654321/50482
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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/50482


    Title: Regeneration of Spent-NaBH4 Back to NaBH4 by Using High-Energy Ball Milling
    Authors: Hsueh, Chan-li;Liu, Cheng-hong;Chen, Bing-hung;Chen, Chuh-yung;Kuo, Yi-chia;黃國楨;Hwang, Kuo-jen;Ku, Jie-ren
    Contributors: 淡江大學化學工程與材料工程學系
    Keywords: Sodium borohydride;Sodium metaborate;Magnesium hydride;Yield
    Date: 2009-02-01
    Issue Date: 2010-08-09 18:17:00 (UTC+8)
    Publisher: Elsevier
    Abstract: High-energy ball milling was employed to regenerate spent-sodium borohydride, i.e., mainly the sodium metaborate (NaBO2), back to sodium borohydride (NaBH4) by a reaction with magnesium hydride (MgH2). The samples were characterized using scanning electron microscopy (SEM), Fourier transform infrared-attenuated total reflectance (FTIR-ATR) spectroscopy, X-ray diffraction (XRD) and nuclear magnetic resonance (NMR) spectroscopy. In general, as the ball-milling duration increases, the yield of NaBH4 increases accordingly and leads to an extreme value of 76%, when MgH2 in stoichiometric excess by 40% was initially present in ball mills.
    Relation: International Journal of Hydrogen Energy 34(4), pp.1717-1725
    DOI: 10.1016/j.ijhydene.2008.12.036
    Appears in Collections:[Graduate Institute & Department of Chemical and Materials Engineering] Journal Article

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