BET Analysis - Specific Surface Area Calculation

Specific surface area is a very important and key property of a nanomaterial and materials science. There are many extraordinary characteristics and applications of nanomaterials, one of them is high specific surface area.
An estimation has shown that at least 1300 commercial products use nanomaterials. Therefore, it is important to discuss one of its key property i.e., specific surface area
Specific surface area is basically the total surface area of a material per unit mass. It is usually measured in the unit of (m2/g)
It can also be defined as surface area per volume. It is usually measured with units of m2/m3 or m−1)
Application
It has a particular importance for the following key areas
Cement and concrete
Adsorption
Catalysis
Reactions on surfaces
Pore size
Pore volume
*How to measure the specific surface area of nanomaterials
Brunauer-Emmett-Teller (N2-BET) analysis is used to measure the specific surface area, pore size, and pore volume of the nanomaterials. Nanomaterials may be the quantum dots, nanoparticles, carbon dots, carbon nanotubes, hollow nanofibers,.....
*Limitation of BET
It only works on solids or dry powder and is not applicable to liquid or colloidal solutions.