Comparison of DFT characterization methods based on N2, Ar, CO2, and H2 adsorption applied to carbons with various pore size distributions.

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Details zur Publikation

Autorinnen und Autoren: Thommes M
Zeitschrift: Carbon
Verlag: Elsevier Science Ltd.
Jahr der Veröffentlichung: 2004
Band: 42
Heftnummer: 7
Seitenbereich: 1227-1232-1232
ISSN: 0008-6223


Adsorption isotherms of N2, Ar, CO2, and H2 were measured on selected activated carbons representing various pore size distributions. Isotherm data were analyzed using the DFT method. A good agreement was obtained between N2 and Ar results in a wide range of pore sizes. Both N2 and Ar results agree with CO2 anal. at 273 K in the range of small micropores where CO2 anal. is most applicable. Also, in this range of pores the anal. of H2 adsorption data at 77 K gives results which are consistent with the results obtained from the more conventional vapor-phase adsorptives. However, the range of PSDs calcd. from H2 data extends to pore sizes smaller than those that can be characterized by other adsorbates. [on SciFinder(R)]

FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Thommes, Matthias Prof. Dr.
Lehrstuhl für Thermische Verfahrenstechnik

Zuletzt aktualisiert 2019-28-02 um 20:53