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

: Covalent Organic Frameworks (COFs) are covalently bonded polymers which are synthesised applying bottomup 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 about the applications of the COFs in gas storage and water harvesting.