Improved Designs of Multifunctional Covalent-Organic Frameworks: Hydrogen Storage, Methane Storage, and Water Harvesting

Covalent Organic Frameworks (COFs) are covalently bonded polymers that are synthesised applying a bottom-up approach using molecular building units that have pre-designed geometry. COFs are crystalline and have control over the position of building units in two and three dimensions, due to which highly regular, rigid, and porous structures can be developed for tuning chemical and physical properties of the network. The present mini-review provides comprehensive overviews of the applications of the COFs in gas storage and water harvesting.