1. Home page
  2. Search

Evaluation of microporosity, pore tortuosity, and connectivity of montmorillonite solids pillared with LaNiOx binary oxide. A combined application of the CPSM model, the alpha(s)-plot method and a pore percolation-connectivity model

This item is provided by the institution :
National Technical University of Athens   

Repository :
Digital Library of National Technical University of Athens | Dspace@NTUA   

see the original item page
in the repository's web site and access all digital files if the item*



Evaluation of microporosity, pore tortuosity, and connectivity of montmorillonite solids pillared with LaNiOx binary oxide. A combined application of the CPSM model, the alpha(s)-plot method and a pore percolation-connectivity model (EN)
Salmas, CE (EN)
Androutsopoulos, GP (EN)
Skaribas, SP (EN)
Pomonis, PJ (EN)
Ladavos, AK (EN)
journalArticle (EN)
2014-03-01T01:53:06Z
2003 (EN)
The present work deals with the comparative application of the CPSM (corrugated pore structure model), the a. plot and the pore connectivity methods for pore structure analysis and especially the detection of microporosity of a category of montmorillonite clays pillared with LaNiOx. binary oxide. A quite good agreement between the corresponding results deduced from the three methods was confirmed. The raising of the LaNiOx content caused a change of pore volume, surface area, and microporosity whereas the relevant curves pass through a maximum. The CPSM model, through the simulation of gas sorption hysteresis, enables the evaluation of unified mesomicropore size distributions, pore surface areas, tortuosity factors, tau(CPSM), and relative microporosities. It is also concluded that pore tortuosity, (tau(CPSM)), is inversely proportional to the pore connectivity factor (c), and the nominal pore length (N-s) (i.e., a CPSM parameter) is proportional to the number of pore lengths (L) (i.e., a parameter of the pore connectivity model). (EN)
Chemistry, Physical (EN)
TOMOGRAPHY (EN)
SIZE DISTRIBUTIONS (EN)
NITROGEN SORPTION MEASUREMENTS (EN)
ISOTHERMS (EN)
MERCURY POROSIMETRY HYSTERESIS (EN)
CARBONS (EN)
ADSORPTION (EN)
POROUS SOLIDS (EN)
CATALYSTS (EN)
PREDICTION (EN)
LANGMUIR (EN)
English
AMER CHEMICAL SOC (EN)
National Technical University of Athens
Digital Library of National Technical University of Athens | Dspace@NTUA
Κεντρική Βιβλιοθήκη Ε.Μ.Π.
Ιδρυματικό Αποθετήριο
Δημοσιεύσεις μελών Δ.Ε.Π. σε περιοδικά



*Institutions are responsible for keeping their URLs functional (digital file, item page in repository site)