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Kwak, Ja Hun
Molecular Catalysis lab
Research Interests
  • Heterogeneous catalysis, molecular catalysis, ASlumima, zeolites

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Characterization of NOx species in dehydrated and hydrated Na- and Ba-Y FAU zeolites formed in NO2 adsorption

DC Field Value Language
dc.contributor.author Szanyi, J ko
dc.contributor.author Kwak, Jahun ko
dc.contributor.author Burton, S ko
dc.contributor.author Rodriguez, JA ko
dc.contributor.author Peden, CHF ko
dc.date.available 2015-07-21T02:37:52Z -
dc.date.created 2015-07-21 ko
dc.date.issued 2006-02 -
dc.identifier.citation JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA, v.150, no.2-3, pp.164 - 170 ko
dc.identifier.issn 0368-2048 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/12201 -
dc.identifier.uri http://www.sciencedirect.com/science/article/pii/S0368204805004536 ko
dc.description.abstract Adsorbed ionic NO2 species formed upon the interaction of NO2 with dehydrated or hydrated Na- and Ba-Y, FAU zeolites were characterized using FT-IR/TPD, solid state NMR, and XANES techniques. NO2 disproportionates on both dehydrated catalyst materials forming NO+ and NO3- species. These ionic species are stabilized by their interactions with the negatively charged zeolite framework and the charge compensating cations (Ne+ and Ba2+), respectively. Although the nature of the adsorbed NOx species formed on the two catalysts is similar, their thermal stabilities are strongly dependent on the charge compensating cations. In the presence of water in the channels of these zeolite materials new paths open for reactions between NO+ and H2O, and NO2 and H2O, resulting in significant changes in the adsorbed ionic species observed. These combined spectroscopic investigations afforded the understanding of the interactions between water and NO2 on these zeolite catalysts. (c) 2005 Elsevier B.V. All rights reserved ko
dc.description.statementofresponsibility close -
dc.language ENG ko
dc.publisher ELSEVIER SCIENCE BV ko
dc.subject NOx reduction ko
dc.subject adsorbed ionic NOx species ko
dc.subject FT-IR ko
dc.subject XANES ko
dc.subject NMR ko
dc.title Characterization of NOx species in dehydrated and hydrated Na- and Ba-Y FAU zeolites formed in NO2 adsorption ko
dc.title.alternative Characterization of NOx species in dehydrated and hydrated Na- and Ba-Y FAU zeolites formed in NO2 adsorption ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-28444458044 ko
dc.identifier.wosid 000234191300009 ko
dc.type.rims ART ko
dc.description.wostc 11 *
dc.description.scopustc 16 *
dc.date.tcdate 2015-12-28 *
dc.date.scptcdate 2015-11-04 *
dc.identifier.doi 10.1016/j.elspec.2005.05.007 ko
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