Localized Adsorption of N on Sublimed Cadmium Bromide and Real Surface Area
The adsorption-desorption of N 2 at 77.5 K on a sublimed sample of cadmium bromide has been studied. The ideal isotherm is applied to experimental data to determine surface area independently of a BET plot. The Frenkel–Halsey–Hill (FHH) plot indicates that there is a localized adsorption of the nitr...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
SAGE Publications
1984-09-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1177/026361748400100303 |
| Summary: | The adsorption-desorption of N 2 at 77.5 K on a sublimed sample of cadmium bromide has been studied. The ideal isotherm is applied to experimental data to determine surface area independently of a BET plot. The Frenkel–Halsey–Hill (FHH) plot indicates that there is a localized adsorption of the nitrogen molecules in the monolayer and that at p/p 0 ≥ 0.4 the multilayer adsorption proceeds in a normal way. In order to obtain the real surface area of the sample from the BET's Vm a cross-sectional area equal to 0.178 nm 2 /N 2 molecule should be used. |
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| ISSN: | 0263-6174 2048-4038 |