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Time-resolved chromatographic analysis and mechanisms in adsorption and catalysis

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dc.contributor.author Roubani-Kalantzopoulou, F en
dc.date.accessioned 2014-03-01T11:45:07Z
dc.date.available 2014-03-01T11:45:07Z
dc.date.issued 2009 en
dc.identifier.issn 0021-9673 en
dc.identifier.uri https://dspace.lib.ntua.gr/xmlui/handle/123456789/37228
dc.subject Adsorption-desorption en
dc.subject Degradation of marbles, ceramics, oxide-pigments of works of art, monuments en
dc.subject Inverse gas chromatography (IGC) en
dc.subject Kinetics of adsorption en
dc.subject Local adsorption quantities en
dc.subject Reversed-flow inverse gas chromatography (RF-IGC) en
dc.subject Review en
dc.subject Time-resolved chromatography en
dc.subject Volatile organic and/or inorganic pollutants en
dc.subject.classification Biochemical Research Methods en
dc.subject.classification Chemistry, Analytical en
dc.subject.other Adsorption-desorption en
dc.subject.other Degradation of marbles, ceramics, oxide-pigments of works of art, monuments en
dc.subject.other Inverse gas chromatography (IGC) en
dc.subject.other Kinetics of adsorption en
dc.subject.other Local adsorption quantities en
dc.subject.other Reversed-flow inverse gas chromatography (RF-IGC) en
dc.subject.other Review en
dc.subject.other Time-resolved chromatography en
dc.subject.other Volatile organic and/or inorganic pollutants en
dc.subject.other Adsorbents en
dc.subject.other Adsorption en
dc.subject.other Air pollution en
dc.subject.other Building materials en
dc.subject.other Catalysis en
dc.subject.other Ceramic materials en
dc.subject.other Chemical reactions en
dc.subject.other Chromatographic analysis en
dc.subject.other Chromatography en
dc.subject.other Construction equipment en
dc.subject.other Degradation en
dc.subject.other Desorption en
dc.subject.other Diffusion in solids en
dc.subject.other Functions en
dc.subject.other Gas adsorption en
dc.subject.other Gases en
dc.subject.other Grafting (chemical) en
dc.subject.other Inverse problems en
dc.subject.other Marble en
dc.subject.other Nanostructured materials en
dc.subject.other Nanotechnology en
dc.subject.other Organic pollutants en
dc.subject.other Paint en
dc.subject.other Parameter estimation en
dc.subject.other Personal computers en
dc.subject.other Pigments en
dc.subject.other Probability density function en
dc.subject.other Rate constants en
dc.subject.other Surface analysis en
dc.subject.other Surface chemistry en
dc.subject.other Surface diffusion en
dc.subject.other Surface reactions en
dc.subject.other Surfaces en
dc.subject.other Synthesis (chemical) en
dc.subject.other Thin films en
dc.subject.other Gas chromatography en
dc.subject.other inorganic compound en
dc.subject.other oxide en
dc.subject.other pigment en
dc.subject.other volatile organic compound en
dc.subject.other adsorption en
dc.subject.other air pollutant en
dc.subject.other building material en
dc.subject.other catalysis en
dc.subject.other catalyst en
dc.subject.other ceramics en
dc.subject.other chemical reaction en
dc.subject.other computer program en
dc.subject.other density functional theory en
dc.subject.other desorption en
dc.subject.other diagnostic accuracy en
dc.subject.other diffusion en
dc.subject.other diffusion coefficient en
dc.subject.other entropy en
dc.subject.other film en
dc.subject.other inverse gas chromatography en
dc.subject.other kinetics en
dc.subject.other mathematical analysis en
dc.subject.other nanoanalysis en
dc.subject.other nonlinear system en
dc.subject.other priority journal en
dc.subject.other regression analysis en
dc.subject.other review en
dc.subject.other solid en
dc.subject.other surface property en
dc.subject.other topography en
dc.subject.other X ray diffraction en
dc.subject.other Adsorption en
dc.subject.other Air Pollutants en
dc.subject.other Art en
dc.subject.other Calcium Carbonate en
dc.subject.other Catalysis en
dc.subject.other Ceramics en
dc.subject.other Chromatography, Gas en
dc.subject.other Kinetics en
dc.subject.other Sculpture en
dc.subject.other Surface Properties en
dc.title Time-resolved chromatographic analysis and mechanisms in adsorption and catalysis en
heal.type other en
heal.identifier.primary 10.1016/j.chroma.2008.11.058 en
heal.identifier.secondary http://dx.doi.org/10.1016/j.chroma.2008.11.058 en
heal.language English en
heal.publicationDate 2009 en
heal.abstract The main object of this review is the study of fundamentals of adsorption and heterogeneous catalysis, a benefit for the understanding of adsorptive and catalytic properties. This work aims to define and record, with the utmost accuracy, the phenomena and the possible reactions. A new methodology for the study of the adsorption is presented, which is a version of the well-known inverse gas chromatography. This reversed-flow inverse gas chromatography (RF-IGC) is technically very simple, and it is combined with a mathematical analysis that gives the possibility for the estimation of various physicochemical parameters related to adsorbent or catalyst characterization, under conditions compatible with the operation of real adsorbents and catalysts. On this base, this methodology has been successfully applied to the study of the impact of air pollutants, volatile organic and/or inorganic, on many solids such as marbles, ceramics, oxide-pigments of works of art, building materials, authentic statues of the Greek Archaeological Museums. Moreover, this methodology proved to be a powerful tool for studying the topography of active sites of heterogeneous surfaces in the nano-scale domain. Thus, some very important local quantities for the surface chemistry have been determined experimentally for many solids including thin films. These physicochemical local quantities (among which adsorption energy and entropy, surface diffusion coefficient, probability density function) have been determined from the experimental pairs of height of extra chromatographic peaks and time by a nonlinear least-squares method, through personal computer programs written in GW BASIC and lately in FORTRAN. Through the tune-resolved analysis the surface characterization of the examined materials took place. In addition, the kinetic constants responsible for adsorption/desorption and surface chemical reactions have also been calculated. Thus, important answers have been provided to the following essential questions: (1) Can RF-IGC define the gnostic regions of adsorption/desorption, surface diffusion, surface reaction? Yes, irrefutably and undeniably. (2) Can RF-IGC deal with issues of catalysis,the existence of more than one reaction? Certainly yes. Indeed, it is impressive to observe the reactions "on line". (3) Can RF-IGC identify peaks of products and reactants simultaneously? Certainly yes. (4) Can RF-IGC be applied to thin films in a nano-scale domain? The answer is "definitely yes". (5) Can it kinetically follow the above? Yes, again. (C) 2008 Elsevier B.V. All rights reserved en
heal.publisher ELSEVIER SCIENCE BV en
heal.journalName Journal of Chromatography A en
dc.identifier.doi 10.1016/j.chroma.2008.11.058 en
dc.identifier.isi ISI:000264025600004 en
dc.identifier.volume 1216 en
dc.identifier.issue 10 en
dc.identifier.spage 1567 en
dc.identifier.epage 1606 en


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