Porous materials are materials that contain interconnected voids or pores, which can range in size from nanometers to millimeters. These materials have a high surface area and are commonly used in a variety of applications such as adsorption, catalysis, filtration, and separation processes. Researchers in this field study the synthesis, characterization, and applications of porous materials in order to understand their properties and optimize their performance for specific applications. Some common types of porous materials include zeolites, metal-organic frameworks, and porous polymers.