Water Adsorption in MOFs: Structures and Applications

Metal–organic frameworks (MOFs) are superior sorbents for water adsorption-based applications. The unique step-like isotherm at a MOF-specific relative pressure allows easy loading and regeneration over small range of temperature conditions. With good hydrothermal stability cyclic durability, it stands out classical used in applications humidity control, harvesting, heating cooling. These easily regenerated moderate temperatures using “waste” heat or solar heating. thermodynamics adsorption mechanisms described, the presence MOFs water–air system is explained. Based on six selection criteria ≈40 reported one COF identified potential application. Trends approaches further synthesis optimization production scale-up highlighted. No-MOF-fits-all, each MOF has its own specific step location matching only with certain application type. Most technically feasible demonstrated bench-scale pilot. Their maturity benchmarked by their technology readiness level. Retrofitting existing replacing desiccants may lead to rapid demonstration. Studies techno-economic analysis life cycle required rational evaluation feasibility promising