The synthesis of Zn-MOF-74 followed the procedure established by Julien et al. It consisted of milling ZnO, 2,5-dihydroxyterephthalic acid, and water together. The M-MOF-74 family of materials is particularly interesting because of their excellent stability, and gas adsorption and catalysis abilities. The second reaction involved the synthesis of ZIF-8 and followed the established procedure by Tanaka et al., and involved the milling of zinc oxide and 2methylimidazole in the presence of extra zinc acetate hydrate. ZIF-8 has been studied for its promising gas separation, sensing, and catalysis capabilities due to its excellent chemical and thermal stability. Detailed mechanisms of the Zn-MOF-74 and ZIF-8 reactions have been published. PXRD (SM, see section S5), SEM images and corresponding EDS data (SM, see section S6), and MR correlation plots were all obtained for these reactions.