Catalytic Activity of Pd-Doped UiO-66 MOF in Magnesium Hydrogenation/Dehydrogenation Process

In this work, Pd-doped UiO-66 metal−organic framework (MOF) was tested as a catalyst for the hydrogen absorption/desorption process. The composition, structure, and physicochemical properties of Pd-doped UiO-66 were studied using elemental analysis, IR spectroscopy, TEM, thermogravimetric and X-ray diffraction analysis. The specific surface area and pore size distribution were estimated using low-temperature nitrogen adsorption. It was shown that hydrogenation results in the formation of β-MgH₂ phase with a tetragonal crystal structure of rutile type, and the rate of the hydrogenation/dehydrogenation reaction increases in several times compared to that of Mg without additives.