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Université de Neuchâtel

The comparison of experimental and calculated pore size distributions of activated carbons

Stoeckli, Fritz ; Guillot, André ; Slasli, Abdou ; Hugi-Cleary, Deirdre

In: Carbon, 2002, vol. 40, no. 3, p. 383-388

Activated carbons are disorganized materials with variable pore size distributions (PSD). If one assumes that the porosity consists mainly of locally slit-shaped micropores, model isotherms can be obtained by computer simulations and used to assess the PSD on the basis of experimental isotherms. In the present study, CO2 isotherms have been measured at 273 K on seven well-characterized...

Université de Neuchâtel

Water adsorption by activated carbons in relation to their microporous structure

Slasli, Abdou ; Jorge, M. ; Stoeckli, Fritz ; Seaton, N. A.

In: Carbon, 2003, vol. 41, no. 3, p. 479-486

The present paper examines the adsorption of water by microporous carbons in the absence of specific interactions. The modelling of water adsorption for 293 and 310 K, using variable pore size distributions (PSD), shows that the type V isotherms follow the Dubinin–Astakhov (DA) equation and fulfill the requirement for temperature invariance. Furthermore, the parameters of the DA equation can be...

Université de Neuchâtel

Modelling of water adsorption by activated carbons: effects of microporous structure and oxygen content

Slasli, Abdou ; Jorge, M. ; Stoeckli, Fritz ; Seaton, N. A.

In: Carbon, 2005, vol. 42, no. 10, p. 1947-1952

The present paper examines the adsorption of water by microporous carbons containing various amounts of surface oxygen and a smaller proportion of basic centres. The modelling of water adsorption for 293 and 310 K, using variable pore size distributions (PSD), confirms that the overall type IV isotherm is the sum of a type I isotherm associated with the specific interactions, and a type V...