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Proceedings of the National Academy of Sciences of Belarus, Chemical Series

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Determination of the specific surface by nitrogen adsorption and comparing it with the geometric surface of the solid

Abstract

The paper deals with the problem of comparing the specific surface area determined by the BET method, and the geometric area. The cause of these discrepancies has been isolated and it has been shown that, depending on adsorbate molecules' packing type in the adsorption layer, the degree of divergence of the specific surface area determined by BET and geometric area of the solid, ranges between 10 and 20%.

About the Authors

V. S. Komarov
Institute of General and Inorganic Chemistry of the National Academy of Sciences of Belarus
Belarus


S. V. Besarab
Institute of General and Inorganic Chemistry of the National Academy of Sciences of Belarus
Belarus


References

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ISSN 1561-8331 (Print)
ISSN 2524-2342 (Online)