Modeling High-Pressure Hydrogen Uptake by Nanoporous Metal–Organic Frameworks: Implications for Hydrogen Storage and Delivery

Due to their very high porosity and superior textural properties, metal–organic frameworks (MOFs) are promising nanoporous materials for hydrogen storage by cryocompression. Herein, we investigated adsorption on four commercial MOFs, namely, MIL53-Al, MOF-5, HKUST-1, MOF-177, over a temperature range of 77 273 K pressures up 14 MPa. The modified Dubinin–Astakhov equation was used fit the experimental data, six parameters (m, nmax, ?, ?, P0, Va) were obtained. We concluded that nmax Va related micropore volume, while m, P0 average size. Compared compression in an empty tank, introduction MOF-5 enhanced volumetric at 10 MPa from 31 42 kg m–3. released H2 capacities MOFs loading pressure discharge 0.5 determined either isothermal or after increase 160 K. For amount usable increased 10.6 wt % (40.8 mg cm–3) drop (from MPa) K).