Methyl modified MOF-5: a water stable hydrogen storage material

Water stable methyl modified MOF-5s have been synthesized via a solvothermal route. Methyl- and 2,5-dimethyl-modified MOF-5s show the same topology and hydrogen uptake capability as that of MOF-5. The H2 uptake capacity of MOF-5, however, drops rapidly when exposed to the ambient air, whereas the H2 uptake capacities of the methyl modified MOF-5s remain stable for 4 days.