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Titre du document / Document title

Porous texture of activated carbons prepared by phosphoric acid activation of woods

Auteur(s) / Author(s)

DIAZ-DIEZ M. A. (1) ; GOMEZ-SERRANO V. (2) ; FERNANDEZ GONZALEZ C. (2) ; CUERDA-CORREA E. M. (2) ; MACIAS-GARCIA A. (1) ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

(1) Área de Ciencia de Materiales e Ingenieria Metalúrgica, Escuela de Ingenierías Industrielles, Universidad de Extremadura, Avda. de Elvas s/n, 06071 Badajoz, ESPAGNE
(2) Departamento de Q. Inorgánica, Facultad de Ciencias, Universidad de Extremadura, Badajoz, ESPAGNE

Résumé / Abstract

Activated carbons (ACs) have been prepared using chestnut, cedar and walnut wood shavings from furniture industries located in the Comunidad Autónoma de Extremadura (SW Spain). Phosphoric acid (H3PO4) at different concentrations (i.e. 36 and 85 wt.%) has been used as activating agent. ACs have been characterized from the results obtained by N2 adsorption at 77 K. Moreover, the fractal dimension (D) has been calculated in order to determine the AC surface roughness degree. Optimal textural properties of ACs have been obtained by chemical activation with H3PO4 36 wt.%. This is corroborated by the slightly lower values of D for samples treated with H3PO4 85 wt.%.

Revue / Journal Title

Applied surface science    ISSN  0169-4332 

Source / Source

Congrès
APHYS-2003 International Meeting on Applied Physics No1, Badajoz , ESPAGNE (15/10/2003)
2004, vol. 238, no 1-4 (564 p.)  [Document : 5 p.] (32 ref.), pp. 309-313 [5 page(s) (article)]

Langue / Language

Anglais

Editeur / Publisher

Elsevier, Amsterdam, PAYS-BAS  (1985) (Revue)

Mots-clés anglais / English Keywords

Adsorption

;

Pore size

;

Activation

;

Phosphoric acid

;

Fractal dimension

;

Activated carbon

;

Texture

;

Porous materials

;

Mots-clés français / French Keywords

Adsorption

;

Dimension pore

;

Activation

;

Phosphorique acide

;

Dimension fractale

;

Charbon actif

;

Texture

;

Matériau poreux

;

Mots-clés espagnols / Spanish Keywords

Dimensión poro

;

Activación

;

Dimensión fractal

;

Mots-clés d'auteur / Author Keywords

82.45.Jn

;

82.65.+r Porous texture

;

Chemical activation

;

Fractal dimension

;

Localisation / Location

INIST-CNRS, Cote INIST : 16002, 35400012610243.0590

Nº notice refdoc (ud4) : 16449334



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