Time distribution of surface energy on heterogeneous surfaces by inverse gas chromatography

Margariti, S; Katsanos, NA; Roubani-Kalantzopoulou, F

dc.contributor.author	Margariti, S	en
dc.contributor.author	Katsanos, NA	en
dc.contributor.author	Roubani-Kalantzopoulou, F	en
dc.date.accessioned	2014-03-01T01:19:39Z
dc.date.available	2014-03-01T01:19:39Z
dc.date.issued	2003	en
dc.identifier.issn	0927-7757	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/15637
dc.subject	Heterogeneous surfaces	en
dc.subject	Inverse gas chromatography	en
dc.subject	Surface energy	en
dc.subject.classification	Chemistry, Physical	en
dc.subject.other	Free energy	en
dc.subject.other	Interfacial energy	en
dc.subject.other	Lime	en
dc.subject.other	Rate constants	en
dc.subject.other	Silica gel	en
dc.subject.other	Solid surfaces	en
dc.subject.other	Colloid chemistry	en
dc.subject.other	calcium oxide	en
dc.subject.other	heptane	en
dc.subject.other	hexane	en
dc.subject.other	pentane	en
dc.subject.other	silicon dioxide	en
dc.subject.other	adsorption	en
dc.subject.other	article	en
dc.subject.other	desorption	en
dc.subject.other	gas chromatography	en
dc.subject.other	measurement	en
dc.subject.other	molecule	en
dc.subject.other	priority journal	en
dc.subject.other	solid state	en
dc.subject.other	surface property	en
dc.subject.other	time	en
dc.title	Time distribution of surface energy on heterogeneous surfaces by inverse gas chromatography	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/S0927-7757(03)00147-X	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S0927-7757(03)00147-X	en
heal.language	English	en
heal.publicationDate	2003	en
heal.abstract	The time separation of experimental surface energy on silica gel and calcium oxide together with the time independent rate constants for adsorption and desorption of pentane, hexane and heptane is described, applying the reversed-flow version of inverse gas chromatography. The dependence of surface energy on the time of measurement is attributed to the heterogeneity of the solid surface. The results obtained agree with Fowkes formalism only for the last Gaussian bands of the London component of the total surface free energy, plotted against experimental time and taking into account their distribution function, found experimentally. This corresponds to adsorbate molecules bound on the second layer of the solid surfaces. (C) 2003 Elsevier B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Colloids and Surfaces A: Physicochemical and Engineering Aspects	en
dc.identifier.doi	10.1016/S0927-7757(03)00147-X	en
dc.identifier.isi	ISI:000186559600007	en
dc.identifier.volume	226	en
dc.identifier.issue	1-3	en
dc.identifier.spage	55	en
dc.identifier.epage	67	en