Abstract
The effect of Mo on the morphology, crystal structure and hydrogen sorption properties of Mg/C composites prepared by reactive milling was studied. Transmission electron microscopic (TEM) observation shows that Mg/C composites prepared with the addition of Mo are of nanoscale with particle size about 20-120 nm after 3 h of milling under 1 MPa H2. MgH2 of tetrahedral crystal structure predominates in the materials with the geometric shape of oblique hexagonal prism. From X-ray diffraction (XRD) and hydrogen content studies, Mo and crystallitic carbon have a synergistic effect on promoting the hydrogenation rate in the reactive milling process. From differential scanning calorimetric (DSC) studies, the dehydrogenation peak temperature of the Mg/C materials with Mo is lowered to 299-340 °C.
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Funded by the National Natural Science Foundation of China ( No. 21176145) and the Graduate Student Innovation Fund of Shandong University of Science and Technology (YC140342)
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Han, Z., Zhou, S., Chen, H. et al. Enhancement of the hydrogen storage properties of Mg/C nanocomposites prepared by reactive milling with molybdenum. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 32, 299–304 (2017). https://doi.org/10.1007/s11595-017-1596-8
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DOI: https://doi.org/10.1007/s11595-017-1596-8