Sulfur-tolerant BaO/ZrO2/TiO2/Al2O3 quaternary mixed oxides for deNOX catalysis

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dc.citation.epage144en_US
dc.citation.issueNumber1en_US
dc.citation.spage133en_US
dc.citation.volumeNumber7en_US
dc.contributor.authorSay, Z.en_US
dc.contributor.authorMihai, O.en_US
dc.contributor.authorTohumeken, M.en_US
dc.contributor.authorErcan, K. E.en_US
dc.contributor.authorOlsson, L.en_US
dc.contributor.authorOzensoy, E.en_US
dc.date.accessioned2018-04-12T11:07:22Z
dc.date.available2018-04-12T11:07:22Z
dc.date.issued2017en_US
dc.departmentDepartment of Chemistryen_US
dc.description.abstractAdvanced quaternary mixed oxide materials in the form of BaO/Al2O3/ZrO2/TiO2 functionalized with Pt active sites (i.e. Pt/BaO/AZT) were synthesized and structurally characterized via XRD and BET in comparison to a conventional Pt/20BaO/Al benchmark NSR/LNT catalyst. The interactions of these catalysts' surfaces with SOx and NOx gases were monitored via in situ FTIR and TPD. There exists a delicate trade-off between NOx storage capacity (NSC) and sulfur uptake/poisoning which is strongly governed by the BaO loading/ dispersion as well as the surface structure and acidity of the support material. Flow reactor measurements performed under realistic catalytic conditions show the high NOx activity for the Pt/20BaO/AZT catalyst at 573 K. After sulfur poisoning and subsequent regeneration at 773 and 973 K, Pt/20BaO/AZT surpassed the NOx catalytic performance at 573 K of all other investigated materials including the conventional Pt/ 20BaO/Al benchmark catalyst.en_US
dc.description.provenanceMade available in DSpace on 2018-04-12T11:07:22Z (GMT). No. of bitstreams: 1 bilkent-research-paper.pdf: 179475 bytes, checksum: ea0bedeb05ac9ccfb983c327e155f0c2 (MD5) Previous issue date: 2017en
dc.identifier.doi10.1039/c6cy01898jen_US
dc.identifier.eissn2044-4761
dc.identifier.issn2044-4753
dc.identifier.urihttp://hdl.handle.net/11693/37251
dc.language.isoEnglishen_US
dc.publisherRoyal Society of Chemistryen_US
dc.relation.isversionofhttp://dx.doi.org/10.1039/c6cy01898jen_US
dc.source.titleCatalysis Science and Technologyen_US
dc.subjectBenchmarkingen_US
dc.subjectCatalyst activityen_US
dc.subjectCatalyst poisoningen_US
dc.subjectCatalystsen_US
dc.subjectEconomic and social effectsen_US
dc.subjectSulfuren_US
dc.subjectCatalytic conditionsen_US
dc.subjectCatalytic performanceen_US
dc.subjectFlow reactorsen_US
dc.subjectFunctionalizeden_US
dc.subjectStorage capacityen_US
dc.subjectSulfur poisoningen_US
dc.subjectSulfur uptakesen_US
dc.subjectSupport materialsen_US
dc.subjectPlatinumen_US
dc.titleSulfur-tolerant BaO/ZrO2/TiO2/Al2O3 quaternary mixed oxides for deNOX catalysisen_US
dc.typeArticleen_US

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