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Krypton Physisorption for Characterization of Nanoscopic Microporous Thin Films

IvoStassen3

By Ivo Stassen, Centre for Surface Chemistry and Catalysis, KU Leuven.

Volumetric physisorption analysis is typically conducted using sample amounts of the order of milligrams to a few grams. For smaller sample quantities and for extremely low surface area samples, the number of non-adsorbed gas molecules at adsorption equilibrium can exceed the amount of molecules adsorbed on the sample, which will hamper the accurate measurement of gas uptake by the sample. Continue reading