Optimization of Metal-Organic Framework MOF-5 Synthesis for Use in Cryo-Adsorption Hydrogen Storage

Synthesis of MOF-5 at room temperature was optimized. The phase-pure crystalline structure with high hydrogen capacity was prepared at room temperature and atmospheric pressure. The MOF-5 pressing and subsequent fractionation singificantly improves its operation properties. An adsorption apparatus was designed and assembled to study the adsorption properties of the synthesized materials under the conditions close to the real one. Experiments on studying the adsorption properties of MOF-5 under the conditions of cryogenic hydrogen adsorption showed that the samples adsorbed up 3.3 wt % H2 at a 30 atm pressure and –196°С.