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dc.contributor.authorRyu, Taekyung
dc.contributor.authorAhn, Nak Ho
dc.contributor.authorSeo, Seungwan
dc.contributor.authorCho, Jung
dc.contributor.authorKim, Hyojun
dc.contributor.authorJo, Donghui
dc.contributor.authorPark, Gi Tae
dc.contributor.authorKim, Pyung Soon
dc.contributor.authorKim, Chang Hwan
dc.contributor.authorBruce, Elliott L.
dc.contributor.authorWright, Paul A.
dc.contributor.authorNam, In-Sik
dc.contributor.authorHong, Suk Bong
dc.date.accessioned2018-01-19T00:31:43Z
dc.date.available2018-01-19T00:31:43Z
dc.date.issued2017-03-13
dc.identifier.citationRyu , T , Ahn , N H , Seo , S , Cho , J , Kim , H , Jo , D , Park , G T , Kim , P S , Kim , C H , Bruce , E L , Wright , P A , Nam , I-S & Hong , S B 2017 , ' Fully copper-exchanged high-silica LTA zeolites as unrivaled hydrothermally stable NH 3 -SCR catalysts ' Angewandte Chemie International Edition , vol. 56 , no. 12 , pp. 3256-3260 . DOI: 10.1002/anie.201610547en
dc.identifier.issn1521-3773
dc.identifier.otherPURE: 248968210
dc.identifier.otherPURE UUID: c722e4ba-2e9e-4659-b2b1-1f4a568274a8
dc.identifier.otherBibtex: urn:b8d9dab952e5f8fce3a6f5b0aec56010
dc.identifier.otherScopus: 85009758496
dc.identifier.urihttp://hdl.handle.net/10023/12516
dc.identifier.urihttp://onlinelibrary.wiley.com/doi/10.1002/anie.201610547/abstract#footer-support-infoen
dc.descriptionWe acknowledge financial support from the National Creative Research Initiative Program (2012R1A3A2048833) through the National Research Foundation of Korea and from Hyundai Motor Group. We also thank J. Y. Koo (POSTECH) for assistance with ESR measurements, K.-S. Lee and Y. H. Jung (8C and 9B, PAL, respectively) for help in X-ray absorption and diffraction data, S. P. Thompson (I11,DLS) for help in obtaining powder X-ray diffraction data, and PAL and DLS for beam time. PAL is supported by MSIP and POSTECH. We acknowledge financial support from the National Creative Research Initiative Program (2012R1A3A2048833) through the National Research Foundation of Korea and from Hyundai Motor Group. We also thank J. Y. Koo (POSTECH) for assistance with ESR measurements, K.-S. Lee and Y. H. Jung (8C and 9B, PAL, respectively) for help in X-ray absorption and diffraction data, S. P. Thompson (I11,DLS) for help in obtaining powder X-ray diffraction data, and PAL and DLS for beam time. PAL is supported by MSIP and POSTECH.en
dc.description.abstractDiesel engine technology is still the most effective solution to meet tighter CO2 regulations in the mobility and transport sector. In implementation of fuel-efficient diesel engines, the poor thermal durability of lean nitrogen oxides (NOx) aftertreatment systems remains as one major technical hurdle. Divalent copper ions when fully exchanged into high-silica LTA zeolites are demonstrated to exhibit excellent activity maintenance for NOx reduction with NH3 under vehicle simulated conditions even after hydrothermal aging at 900 °C, a critical temperature that the current commercial Cu-SSZ-13 catalyst cannot overcome owing to thermal deactivation. Detailed structural characterizations confirm the presence of Cu2+ ions only at the center of single 6-rings that act not only as a catalytically active center, but also as a dealumination suppressor. The overall results render the copper-exchanged LTA zeolite attractive as a viable substitute for Cu-SSZ-13.en
dc.format.extent5en
dc.language.isoeng
dc.relation.ispartofAngewandte Chemie International Editionen
dc.rights© 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at: https://doi.org/10.1002/anie.201610547en
dc.rights© 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at: https://doi.org/10.1002/anie.201610547en
dc.subjectCu-LTAen
dc.subjectHeterogeneous catalysisen
dc.subjectHydrothermal stabilityen
dc.subjectSelective catalytic reductionen
dc.subjectZeolitesen
dc.subjectQD Chemistryen
dc.subjectNDASen
dc.subject.lccQDen
dc.titleFully copper-exchanged high-silica LTA zeolites as unrivaled hydrothermally stable NH3-SCR catalystsen
dc.typeJournal articleen
dc.description.versionPostprinten
dc.description.versionPostprinten
dc.contributor.institutionUniversity of St Andrews. School of Chemistryen
dc.contributor.institutionUniversity of St Andrews. EaSTCHEMen
dc.identifier.doihttps://doi.org/10.1002/anie.201610547
dc.description.statusPeer revieweden
dc.date.embargoedUntil18-01-20


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