Water adsorption by activated carbons in relation to their microporous structure

• Type: Article in International Scientific Journal
• Date: 2003

Authors

Abdou Slasli (Author) Other; Miguel Ângelo da Silva Jorge (Author) FEUP; Fritz Stoeckli (Author) Other; Nigel Seaton (Author) Other

Journal

Title: Carbon

Vol. 41 No. 3

Pages: 479-486

ISSN: 0008-6223

Publisher: Elsevier

Indexing

ISI Web of Science

Scopus

COMPENDEX

Scientific classification

FOS: Engineering and technology > Chemical engineering

CORDIS: Technological sciences > Engineering > Chemical engineering

Other information

DOI: 10.1016/S0008-6223(02)00364-0

Abstract (EN): 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 related in a simple way to structural properties of the model carbons. For a number of well-characterized carbons, the type V isotherms generated by combining model isotherms with the corresponding PSDs are in good agreement with the limiting isotherms at 293 and 310 K derived on the basis of a recent development of Dubinin's theory. This approach will provide the basis for further studies including specific interactions.

Language: English

Type (Professor's evaluation): Scientific