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BET surface area analysis of activated carbon

BET surface area analysis of activated carbon

DESOTEC R&D laboratory: BET measurement

The BET surface area method is based on a 1938 paper by Brunauer, Emmett and Teller, to measure the internal surface area of activated carbon. The mathematical model uses the nitrogen adsorption isotherm at low temperature and single layer adsorption.

The DESOTEC R&D laboratory is equipped with a BET measuring instrument that, in addition to the internal surface area, also calculates the average pore size, pore volume and pore size distribution. Depending on the application, DESOTEC can offer activated carbon types ranging from 400 to more than 1,500m2/g.