Measurement of adsorption energies on heterogeneous surfaces by inverse gas chromatography

Katsanos, NA; Rakintzis, N; Roubani-Kalantzopoulou, F; Arvanitopoulou, E; Kalantzopoulos, A

dc.contributor.author	Katsanos, NA	en
dc.contributor.author	Rakintzis, N	en
dc.contributor.author	Roubani-Kalantzopoulou, F	en
dc.contributor.author	Arvanitopoulou, E	en
dc.contributor.author	Kalantzopoulos, A	en
dc.date.accessioned	2014-03-01T02:41:36Z
dc.date.available	2014-03-01T02:41:36Z
dc.date.issued	1999	en
dc.identifier.issn	0021-9673	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/30557
dc.subject	Adsorption energy	en
dc.subject	Inverse gas chromatography	en
dc.subject.classification	Biochemical Research Methods	en
dc.subject.classification	Chemistry, Analytical	en
dc.subject.other	aluminum oxide	en
dc.subject.other	ferric oxide	en
dc.subject.other	lead oxide	en
dc.subject.other	titanium dioxide	en
dc.subject.other	zinc oxide	en
dc.subject.other	adsorption	en
dc.subject.other	adsorption chromatography	en
dc.subject.other	conference paper	en
dc.subject.other	desorption	en
dc.subject.other	energy	en
dc.subject.other	enthalpy	en
dc.subject.other	gas chromatography	en
dc.subject.other	priority journal	en
dc.subject.other	surface property	en
dc.subject.other	thermodynamics	en
dc.title	Measurement of adsorption energies on heterogeneous surfaces by inverse gas chromatography	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1016/S0021-9673(99)00262-9	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S0021-9673(99)00262-9	en
heal.language	English	en
heal.publicationDate	1999	en
heal.abstract	Inverse gas chromatography methods, like the reversed-flow gas chromatography technique, offer a new pathway to the determination of adsorption energies of gaseous substances on heterogeneous solid adsorbents, as a function of time. The theoretical development was based on the local isotherm model of Jovanovic, and the experimental arrangement was a simple gas chromatograph, slightly modified. The method was applied to four gas-solid systems, at 323.2 K, namely, gaseous C2H4 and ZnO, PbO, TiO2, Fe2O3, the solids also being gamma-irradiated with 8.2 Mrad before adsorption experiments. The results obtained point to the conclusion that a time transition period with respect to the adsorption energy exists, consisting of maxims and minima in the values of energy with time. It ends by levelling off at long times. The kinetic physicochemical quantities of adsorption have also been measured. (C) 1999 Elsevier Science B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Journal of Chromatography A	en
dc.identifier.doi	10.1016/S0021-9673(99)00262-9	en
dc.identifier.isi	ISI:000081110300011	en
dc.identifier.volume	845	en
dc.identifier.issue	1-2	en
dc.identifier.spage	103	en
dc.identifier.epage	111	en