Mikroporösität

Mikroporösität, also known as microporosity, refers to the presence of very small pores or voids within a material, typically ranging from 2 to 50 nanometers in size. These pores are significantly smaller than those found in macroporous materials and are often too small to be seen with a light microscope. Microporosity can be found in various materials, including minerals, ceramics, and certain types of polymers.

The presence of micropores can significantly influence the physical and chemical properties of a material. For example, microporous materials often exhibit high surface area-to-volume ratios, which can enhance their adsorption capacity and catalytic activity. In geological contexts, microporosity can affect the permeability and storage capacity of rocks, impacting fluid flow and reservoir behavior.

Microporosity can be measured using techniques such as gas adsorption, mercury intrusion porosimetry, and small-angle X-ray scattering. These methods allow scientists to quantify the size, shape, and distribution of micropores within a material. Understanding microporosity is crucial in fields such as materials science, geology, and catalysis, where the properties of materials are closely linked to their pore structure.