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|Title:||Hydrogen storage of ZnO and Mg doped ZnO nanowires||Authors:||Pan, H.
|Issue Date:||28-Jun-2006||Citation:||Pan, H., Luo, J., Sun, H., Feng, Y., Poh, C., Lin, J. (2006-06-28). Hydrogen storage of ZnO and Mg doped ZnO nanowires. Nanotechnology 17 (12) : 2963-2967. ScholarBank@NUS Repository. https://doi.org/10.1088/0957-4484/17/12/023||Abstract:||ZnO nanowires without or with Mg doping were produced by thermally oxidizing pure Zn or (Zn + Mg) powders. X-ray diffraction (XRD) patterns indicated that ZnO nanowires with and without Mg doping were crystalline with wurzite structure. The highest hydrogen uptake capability was 2.79 wt% at room temperature and 860 psi for Mg-doped ZnO nanowires. 70.1% of the stored hydrogen can be released at ambient pressure. 2.57 wt% uptake and 68.3% release were measured for ZnO nanowires. Fourier transform infrared spectroscopy (FTIR) showed the formation of O-H bonds, while temperature programmed desorption (TPD) suggested that chemisorbed hydrogen could be released only at 100-250 °C. The H2 absorption mechanism on ZnO is discussed. © 2006 IOP Publishing Ltd.||Source Title:||Nanotechnology||URI:||http://scholarbank.nus.edu.sg/handle/10635/96853||ISSN:||09574484||DOI:||10.1088/0957-4484/17/12/023|
|Appears in Collections:||Staff Publications|
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