Water adsorption by activated carbons in relation to their microporous structure

• Tipo: Artigo em Revista Científica Internacional
• Data: 2003

Autores

Abdou Slasli (Autor) Outra; Miguel Ângelo da Silva Jorge (Autor) FEUP; Fritz Stoeckli (Autor) Outra; Nigel Seaton (Autor) Outra

Revista

Título: Carbon

Vol. 41 Nº 3

Páginas: 479-486

ISSN: 0008-6223

Editora: Elsevier

Indexação

ISI Web of Science

Scopus

COMPENDEX

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia química

CORDIS: Ciências Tecnológicas > Engenharia > Engenharia química

Outras Informações

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.

Idioma: Inglês

Tipo (Avaliação Docente): Científica