Covalent Organic Frameworks-Based Nanomaterials for Greenhouse Gases Capture and Storage:

Methane and CO₂ are the most powerful originators of global warming, the first due to the nature of its chemical bonds, is 86 times more potent than CO₂ , but CO₂ has a higher contribution to temperature's rise because of its much higher abundance. Furthermore, those gases represent a great potential for energy production, especially methane, which is found as natural gas in shale gas reserves, e.g., methane has wide applications as direct vehicle fuel, hydrogen fuel cells, domestic heat source, hydrogen production, and electricity production. In the case of CO₂ , great advances to turn it into an energy source are being carried out. Among the newest materials that have shown excellent adsorption applicability, the covalent organic frameworks (COF's) have emerged as promising materials, because of the architecture of the high diversity of molecular topologies. In this chapter we will cover the recent progress on the COF technologies for the adsorption of methane and CO₂ , focusing on the design of 3D structural topologies and operational conditions. A future outlook will be provided, enabling the reader to find out the potential of these materials for real-life applications.