Brunauer-Emmett-Teller isotherm

The Brunauer-Emmett-Teller (BET) isotherm is a scientific model used to understand how gases like nitrogen stick to the surface of solid materials, such as powders or catalysts. It explains the process of adsorption, where molecules form layers on a surface, and helps determine the surface area by analyzing the amount of gas that binds at different pressures. This information is important for applications like developing catalysts, adsorbents, and porous materials, revealing how much active surface area is available for reactions or filtration.