A new method for microporosity detection based on the use of the corrugated pore structure model (CPSM)

Salmas, CE; Stathopoulos, VN; Ladavos, AK; Pomonis, PJ; Androutsopoulos, GP

dc.contributor.author	Salmas, CE	en
dc.contributor.author	Stathopoulos, VN	en
dc.contributor.author	Ladavos, AK	en
dc.contributor.author	Pomonis, PJ	en
dc.contributor.author	Androutsopoulos, GP	en
dc.date.accessioned	2014-03-01T02:42:03Z
dc.date.available	2014-03-01T02:42:03Z
dc.date.issued	2002	en
dc.identifier.issn	0167-2991	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/30751
dc.subject	Pore Size	en
dc.subject	Pore Size Distribution	en
dc.subject	Pore Structure	en
dc.subject	Porous Material	en
dc.subject	Silica Gel	en
dc.subject	Surface Area	en
dc.subject.classification	Chemistry, Physical	en
dc.subject.other	aluminum derivative	en
dc.subject.other	iron derivative	en
dc.subject.other	silicon dioxide	en
dc.subject.other	adsorption	en
dc.subject.other	clay	en
dc.subject.other	conference paper	en
dc.subject.other	gel	en
dc.subject.other	hysteresis	en
dc.subject.other	molecular model	en
dc.subject.other	porosity	en
dc.title	A new method for microporosity detection based on the use of the corrugated pore structure model (CPSM)	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1016/S0167-2991(02)80216-6	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S0167-2991(02)80216-6	en
heal.language	English	en
heal.publicationDate	2002	en
heal.abstract	This paper deals with the application of the CPSM and alpha(s) methods to determine microporosities of silica gels and microporous clays pillared with Al1-xFexOy oxidic species. A reasonably good agreement between the two methods was ascertained. However, the CPSM method evaluates slightly higher relative microporosities in the case of pillared clays. By raising the Fe content a decrease of the relative microporosity of pillared clays was observed. The CPSM method is most appropriate for the tracing of supermicropores i.e. pore sizes D-p=1-2 nm, as it is based on the assumption that an adsorbed gas monolayer exists. The CPSM model through the simulation of gas sorption hysteresis, enables a unified analysis of porous materials exhibiting mixed meso-micropore structures, involving evaluation of meso-micro pore size distribution, determination of pore surface area in good agreement with the corresponding values from a Langmuir equivalent model, estimation of tortuosity factors tau(CPSM) and detection of relative microporosity in satisfactory agreement with relevant data obtained by the alpha(s) method.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Studies in Surface Science and Catalysis	en
heal.bookName	STUDIES IN SURFACE SCIENCE AND CATALYSIS	en
dc.identifier.doi	10.1016/S0167-2991(02)80216-6	en
dc.identifier.isi	ISI:000180452700004	en
dc.identifier.volume	144	en
dc.identifier.spage	27	en
dc.identifier.epage	34	en