Abstract
The isotherms describing excess adsorption of SF6 and N6I6 on carbon adsorbents with different pore structures were measured at pressures of 0.001—2.4 and 0.0001—0.1 MPa, respectively, and temperatures of 298—408 E. A linear dependence of Henry"s constant on temperature in the lnK—103/O coordinates was found for all the samples. The specific surface areas of the samples determined by the BET method from the SF6 adsorption are lower than those derived from benzene adsorption. The most pronounced difference was found for the grafitized carbon black. When SF6 was adsorbed on supermicroporous carbon AC-71 and on microporous carbons PAC and CMS, a hysteresis was found, which, unlike that on mesoporous carbon adsorbents, is observed in the initial region of the equilibrium pressures.
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Pribylov, A.A., Kalinnikova, I.A. & Regent, N.I. Features of sulfur hexafluoride adsorption on carbon adsorbents. Russian Chemical Bulletin 52, 882–888 (2003). https://doi.org/10.1023/A:1024492024167
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DOI: https://doi.org/10.1023/A:1024492024167