Magnesium is considered as a potential material for the separation of hydrogen from different gas streams (CH4/H2, syngas, natural gas, etc.). Herein, an elemental mixture Mg and Ni (5 wt%) used selective absorption CH4/H2 (90:10) at 350 °C. The performed studies (X-ray diffraction, thermogravimetric analysis, differential scanning calorimetry, chromatography) show that analyzed absorbs 4.5 wt%...