Accueil >
Production scientifique
(260) Production(s) de FIRLEJ L.
 |
Insertion (adsorption) dans les nanotubes de carbone
Auteur(s): Abou hamad Edy, Almairac Robert, Alvarez C., Anglaret E., Aznar R., Bantignies J.-L., Bendiab Nicolas, Cambedouzou Jean, Dragin Fabienne, Firlej L., Goze-Bac C., Michel T., Rols Stéphane, Sauvajol J.-L.
(Affiches/Poster)
Comité d'Evaluation du LCVN (Montpellier, France, FR), 2006-02-23 |
|
Phase transitions in layers adsorbed in cylindrical nanopores - correlation with the adsorption mechanism
Auteur(s): Firlej L., Kuchta B.
(Article) Publié:
-Science Notes, vol. Physics 6/7 p. (2005)
|
|
Melting of krypton monolayers adsorbed in carbon nanopores.
Auteur(s): Firlej L., Kuchta B.
(Article) Publié:
Studies In Surface Science And Catalysis, vol. 156 p.689 (2005)
|
|
|
Low temperature phases of rare gases adsorbed on single wall carbon nanotubes
Auteur(s): Firlej L., Kuchta B.
(Article) Publié:
Journal Of Low Temperature Physics, vol. 139 p.599-607 (2005)
Résumé: We have studied an. influence of cylindrical substrate Corrugation on structures of a hypothetical LJ atomic gas adsorbed at low temperature. The general results of monolayer adsorption mechanism, are illustrated by examples of rare gases adsorbed, on armchair carbon nanotube. We have shown that the mechanism of adsorption depends on both energetic and structural factors that are characteristic for the nano tubes wall structures and theirs cylindrical geometry.
Commentaires: ISI Document Delivery No.: 934YU Times Cited: 0 Cited Reference Count: 12 English Article 0022-2291
|
|
|
|
Modeling of adsorption in nanopores
Auteur(s): Kuchta B., Firlej L., Maurin G.
(Article) Publié:
Journal Of Molecular Modeling, vol. 11 p.293-300 (2005)
Résumé: Adsorption in nonporous materials has been studied using Grand Canonical Monte Carlo simulations. We discuss three types of materials: (a) a model of cylindrical pores with smooth walls, representing MCM-41 like materials, (b) a model of cylindrical pores with regular structured walls (model of carbon nanotubes) and (c) a material with crystalline wall structure (zeolites). Typical problems related to the stability of adsorbed layers have been analyzed. We have shown that the mechanism of adsorption is strongly dependent on the structure of the pore walls. In the case of amorphous walls it may lead to metastable configurations. In nanotubes, the ordered corrugation structure of walls determines the low temperature structure of the adsorbed system. In 3D ordered porous system, such as zeolites, the mechanism of adsorption is mostly determined by characteristic sites of adsorption.
|
|
|
|
Mechanism of adsorption in cylindrical nanopores: The roles of fluctuations and correlations in stabilizing the adsorbed phase
Auteur(s): Kuchta B., Firlej L., Maurin G.
(Article) Publié:
The Journal Of Chemical Physics, vol. 123 p.174711 (2005)
Résumé: The mechanism of the adsorption in nanometric cylindrical pores has been studied using grand canonical Monte Carlo simulations. The results have been analyzed from the point of view of microscopic correlations. It has been shown that the correlations between the energy components and between the energy and the number of adsorbed particles provide crucial information concerning the microscopic mechanism of the formation of adsorbed layers. Typical susceptibility functions have been calculated. They give the relations between the statistical correlations and the stability of the adsorbed system in different stages of adsorption. The numerical calculations have been carried out for Kr atoms adsorbed in an MCM-41 model porous material with pores of diameter d=4 nm. The smooth-wall model as well as the model of a wall with micropores have been discussed.
Commentaires: ISI Document Delivery No.: 980JH Times Cited: 0 Cited Reference Count: 31 English Article 0021-9606 174711
|
|
|
|
Melting of krypton layers adsorbed in cylindrical pores
Auteur(s): Kuchta B., Firlej L.
(Article) Publié:
Journal Of Low Temperature Physics, vol. 139 p.591-598 (2005)
Résumé: The mechanism of melting and its correlation to adsorption on cylindrical surfaces of silica-like cylindrical nanopores has been studied for the first time. The size of the pores has been defined by its diameter (4 nm in this work). As an example, we have analyzed krypton atoms as adsorbed system. We have shown., that the layer adsorbed on the surface Of the pore has much lower melting temperature (T = 77.5 K) than both, the filled pore (T = 90 K) and the bulk system (T = 118 K). The mechanism of melting in the layer is a continuous transition and depends on the vacancy for formation. The layering transition changes its character with. temperature from, a sharp transition below the melting temperature into a continuous one above it.
Commentaires: ISI Document Delivery No.: 934YU Times Cited: 1 Cited Reference Count: 12 English Article 0022-2291
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 
