Systematic study of the impact of MOF densification into tablets on textural and mechanical properties

Jan. 1, 2017, midnight - by J. Dhainaut , C. Avci-Camur , J. Troyano , A. Legrand , J. Canivet , I. Imaz , D. Maspoch , H. Reinsch , D. Farrusseng

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Densification process of MOF powders (HKUST-1, UiO-66, UiO-66-NH 2 , and UiO-67) into mechanically resistant pellets with maintained microporosity and enhanced volumetric uptake. , Four different metal–organic framework powders (UiO-66, UiO-66-NH 2 , UiO-67, and HKUST-1) were shaped into tablets. The effect of the applied pressure on porous properties, mechanical resistance and tablet bulk density is reported. We observe a linear relationship between densification and tensile strength for all four studied MOFs, with the slope being MOF-dependent. We also report conditions for improving significantly the volumetric uptake. Finally, we evaluated our tablets' stability over time in the presence of moisture.