ABSTRACT
Porous materials are fast developed a class of solid materials. Covalent organic frameworks (COFs) are the new member of porous organic structures. Unlike metal-organic frameworks (MOFs), COFs consist of light elements. These elements are boron (B), carbon (C), nitrogen (N), oxygen (O), and silicon (Si). The application areas of COFs are very diverse. Adsorption, catalysis, energy storage, and sensing applications can be listed. These application areas show how valuable and important the materials of COFs are. In this chapter, synthesis methods of COFs, basic materials for COFs, and general application areas will be explained. Solvothermal, microwave, and sonochemical methods are generally used for synthesizing of COFs. The reaction types, conditions, and efficiencies of methods will be compared. The important parts of COFs are the linkers. In this chapter, the developed linkers will be explained. Ditopic, tritopic, and tetratopic linkers will be investigated. COFs developed to date will be classified according to their preparation methods and application areas.
