A new model for capillary condensation-evaporation hysteresis based on a random corrugated pore structure concept: Prediction of intrinsic pore size distributions. 1. Model formulation

Androutsopoulos, GP; Salmas, CE

dc.contributor.author	Androutsopoulos, GP	en
dc.contributor.author	Salmas, CE	en
dc.date.accessioned	2014-03-01T01:15:26Z
dc.date.available	2014-03-01T01:15:26Z
dc.date.issued	2000	en
dc.identifier.issn	0888-5885	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/13496
dc.subject	Pore Size Distribution	en
dc.subject	Pore Structure	en
dc.subject.classification	Engineering, Chemical	en
dc.subject.other	MESOPOROUS SOLIDS	en
dc.subject.other	MCM-41	en
dc.title	A new model for capillary condensation-evaporation hysteresis based on a random corrugated pore structure concept: Prediction of intrinsic pore size distributions. 1. Model formulation	en
heal.type	journalArticle	en
heal.identifier.primary	10.1021/ie0001624	en
heal.identifier.secondary	http://dx.doi.org/10.1021/ie0001624	en
heal.language	English	en
heal.publicationDate	2000	en
heal.abstract	The present article deals with the development of a new statistical model (corrugated pore structure model: CPSM) simulating capillary condensation-evaporation hysteresis. The formulation of analytical expressions is based on probability principles, an adsorbed layer thickness correlation; Kelvin equation, and a random corrugated pore concept. When the model is fitted over experimental hysteresis loop data, the respective intrinsic pore size distribution (psd) and the corrugated pore parameter, N-s (frequency of pore cross-sectional area variation), can be determined. The predictive potential of the CPSM was successfully tested in part 1 (this work) by generating hysteresis loops that reproduced those included in the IUPAC classification as well as those of novel nanoporous MCM-41 materials. CPSM evaluations of intrinsic pore size distributions have been more realistic and accurate than those deduced by applying the conventional methods (e.g., Roberts). The model has been further tested successfully in part 2 (Ind. Eng. Chem. Res, 2000, 39, 3764) by the fitting of experimental hysteresis data pf various porous materials e.g., HDS catalysts, anodic oxide films, lignite, montmorillonite, pillared clays, and MCM-41 mesopore molecular sieves.	en
heal.publisher	AMER CHEMICAL SOC	en
heal.journalName	INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH	en
dc.identifier.doi	10.1021/ie0001624	en
dc.identifier.isi	ISI:000089733100047	en
dc.identifier.volume	39	en
dc.identifier.issue	10	en
dc.identifier.spage	3747	en
dc.identifier.epage	3763	en