Chromatographic analysis of adsorption: Chemisorption and/or physisorption

Agelakopoulou, T; Roubani-Kalantzopoulou, F

dc.contributor.author	Agelakopoulou, T	en
dc.contributor.author	Roubani-Kalantzopoulou, F	en
dc.date.accessioned	2014-03-01T01:29:59Z
dc.date.available	2014-03-01T01:29:59Z
dc.date.issued	2009	en
dc.identifier.issn	0009-5893	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/19430
dc.subject	Adsorption, chemisorption, physisorption	en
dc.subject	Gas chromatography	en
dc.subject	Reversed flow (inverse) gas chromatography	en
dc.subject	Time resolved analysis	en
dc.subject.classification	Biochemical Research Methods	en
dc.subject.classification	Chemistry, Analytical	en
dc.subject.other	adsorbent	en
dc.subject.other	benzene	en
dc.subject.other	iron oxide	en
dc.subject.other	nitrogen dioxide	en
dc.subject.other	toluene	en
dc.subject.other	zinc oxide	en
dc.subject.other	adsorption	en
dc.subject.other	article	en
dc.subject.other	chemisorption	en
dc.subject.other	force	en
dc.subject.other	inverse gas chromatography	en
dc.subject.other	physiosorption	en
dc.subject.other	priority journal	en
dc.subject.other	solid	en
dc.subject.other	strength	en
dc.subject.other	surface property	en
dc.subject.other	topography	en
dc.subject.other	van der waals force	en
dc.title	Chromatographic analysis of adsorption: Chemisorption and/or physisorption	en
heal.type	journalArticle	en
heal.identifier.primary	10.1365/s10337-008-0882-1	en
heal.identifier.secondary	http://dx.doi.org/10.1365/s10337-008-0882-1	en
heal.language	English	en
heal.publicationDate	2009	en
heal.abstract	Eight systems namely the C6H6 /Fe2O 3, C6H6/NO2/Fe2O 3, C6H5CH3/Fe2O 3, C6H5CH3/NO2/Fe 2O3, C6H6/ZnO, C6H 6/NO2/ZnO, C6H5CH3/ZnO, C6H5CH3/NO2/ZnO are examined through a version of inverse gas chromatography and six physicochemical adsorption quantities are determined for each heterogeneous system. Thus, the reversed flow-(inverse) gas chromatography is used for the investigation and study of adsorption phenomena taking place on these heterogeneous solid surfaces. In the case of iron oxide the presence of nitrogen dioxide facilitates the chemisorption. This is not obvious in the case of zinc oxide. However, nitrogen dioxide facilitates the adsorption of benzene and toluene through van der Waals forces in both oxides. Through the experimental local quantities determined and the detailed time-resolved analysis, useful information for the nature and the strength of the adsorbate-adsorbent as well as the adsorbate-adsorbate interactions have been extracted giving an insight into the topography of the active sites and the nature of the surface bonds. © 2008 Vieweg+Teubner \| GWV Fachverlage GmbH.	en
heal.publisher	VIEWEG	en
heal.journalName	Chromatographia	en
dc.identifier.doi	10.1365/s10337-008-0882-1	en
dc.identifier.isi	ISI:000262967600009	en
dc.identifier.volume	69	en
dc.identifier.issue	3-4	en
dc.identifier.spage	243	en
dc.identifier.epage	255	en