Potential of ultramicroporous metal–organic frameworks in CO2 clean-up

Abstract

This article explains the need for energy-efficient large-scale CO₂ capture and briefly mentions the requirements for optimal solid sorbents for this application. It illustrates the potential of ultra-microporous metal–organic frameworks (MOFs, pore size: <7.0 Å) for the separation of CO₂ from industrially abundant greenhouse gas mixtures. Some high-performing and well-studied MOFs are discussed to communicate the present status of the field. From their structural features, some successful design principles for creating such ultra-microporous MOFs are derived. Towards the close, favorable CO₂ diffusion in many of these small pore MOFs is highlighted.