Catalytically Enhanced Hydrogen Sorption in Mg-MgH2 by Coupling Vanadium-Based Catalyst and Carbon Nanotubes
作者： Atikah Kadri , Yi Jia , Zhigang Chen , Xiangdong Yao
DOI: 10.3390/MA8063491
关键词: Materials science 、 Hydrogen 、 Thermal desorption spectroscopy 、 Carbon nanotube 、 Magnesium hydride 、 Catalysis 、 Chemical engineering 、 Hydrogen storage 、 Desorption 、 Vanadium 、 Inorganic chemistry
摘要: Mg (MgH2)-based composites, using carbon nanotubes (CNTs) and pre-synthesized vanadium-based complex (VCat) as the catalysts, were prepared by high-energy ball milling technique. The synergistic effect of coupling CNTs VCat in MgH2 was observed for an ultra-fast absorption rate 6.50 wt. % hydrogen per minute release 10 min at 200 °C 300 °C, respectively. temperature programmed desorption (TPD) results reveal that reduces both peak onset temperatures more than 60 114 In addition, presence enthalpy entropy about 7 kJ/mol H2 11 J/mol H2·K, respectively, compared to those commercial MgH2, which ascribe decrease temperature. From study time, it is shown partially destroyed (shorter time) are better enhance sorption performance.
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