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Please use this identifier to cite or link to this item: https://doi.org/10.21256/zhaw-20920
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dc.contributor.authorIto, Shizuka-
dc.contributor.authorWang, Xianwei-
dc.contributor.authorWaheed, Ammara-
dc.contributor.authorLi, Gao-
dc.contributor.authorMaeda, Nobutaka-
dc.contributor.authorMeier, Daniel Matthias-
dc.contributor.authorNaito, Shuichi-
dc.contributor.authorBaiker, Alfons-
dc.date.accessioned2020-11-26T14:52:17Z-
dc.date.available2020-11-26T14:52:17Z-
dc.date.issued2020-
dc.identifier.issn0021-9517de_CH
dc.identifier.issn1090-2694de_CH
dc.identifier.urihttps://digitalcollection.zhaw.ch/handle/11475/20920-
dc.description.abstractThe influence of the support (Al2O3, CeO2, TiO2) in the oxidation of benzyl alcohol (BA) to benzaldehyde on Ir-based catalysts was investigated by ATR-IR spectroscopy in tandem with modulation excitation spectroscopy (ATR-IR-MES) at working conditions of the catalysts. ATR-IR-MES unveiled the dissociative adsorption of BA and the formation of adsorbed transient alkoxy species (C6H5CH2O-) to be key for high catalytic performance. These species were detected on Ir/TiO2 and Ir/Al2O3 but not on Ir/CeO2, which exhibited poor catalytic performance. On Ir/TiO2 pretreated with hydrogen at 450°C about 84% of the Ir sites were blocked due to formation of a titania overlayer. However, this catalyst afforded a more than seven times higher activity than the corresponding one pretreated at 300°C, where about 68% of the Ir sites were blocked. The high activity of the titania overlayer is attributed to the formation of Ti cations with oxygen vacancies caused by the hydrogen pretreatment.de_CH
dc.language.isoende_CH
dc.publisherElsevierde_CH
dc.relation.ispartofJournal of Catalysisde_CH
dc.rightshttp://creativecommons.org/licenses/by-nc-nd/4.0/de_CH
dc.subjectAerobic oxidationde_CH
dc.subjectBenzyl alcoholde_CH
dc.subjectIridium catalystsde_CH
dc.subjectATR-IR spectroscopyde_CH
dc.subjectModulation excitation spectroscopyde_CH
dc.subjectEffect of supportde_CH
dc.subjectAl2O3de_CH
dc.subjectCeO2de_CH
dc.subjectTransient alkoxidede_CH
dc.subjectTiO2 overlayerde_CH
dc.subject.ddc540: Chemiede_CH
dc.titleSupport effects in iridium-catalyzed aerobic oxidation of benzyl alcohol studied by modulation-excitation attenuated total reflection IR spectroscopyde_CH
dc.typeBeitrag in wissenschaftlicher Zeitschriftde_CH
dcterms.typeTextde_CH
zhaw.departementSchool of Engineeringde_CH
zhaw.organisationalunitInstitute of Materials and Process Engineering (IMPE)de_CH
dc.identifier.doi10.1016/j.jcat.2020.11.010de_CH
dc.identifier.doi10.21256/zhaw-20920-
zhaw.funding.euNode_CH
zhaw.originated.zhawYesde_CH
zhaw.pages.end50de_CH
zhaw.pages.start42de_CH
zhaw.publication.statusacceptedVersionde_CH
zhaw.volume393de_CH
zhaw.embargo.end2022-11-23de_CH
zhaw.publication.reviewPeer review (Publikation)de_CH
zhaw.webfeedChemieingenieurwesende_CH
zhaw.webfeedVerfahrenstechnikde_CH
zhaw.author.additionalNode_CH
zhaw.display.portraitYesde_CH
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Ito, S., Wang, X., Waheed, A., Li, G., Maeda, N., Meier, D. M., Naito, S., & Baiker, A. (2020). Support effects in iridium-catalyzed aerobic oxidation of benzyl alcohol studied by modulation-excitation attenuated total reflection IR spectroscopy. Journal of Catalysis, 393, 42–50. https://doi.org/10.1016/j.jcat.2020.11.010
Ito, S. et al. (2020) ‘Support effects in iridium-catalyzed aerobic oxidation of benzyl alcohol studied by modulation-excitation attenuated total reflection IR spectroscopy’, Journal of Catalysis, 393, pp. 42–50. Available at: https://doi.org/10.1016/j.jcat.2020.11.010.
S. Ito et al., “Support effects in iridium-catalyzed aerobic oxidation of benzyl alcohol studied by modulation-excitation attenuated total reflection IR spectroscopy,” Journal of Catalysis, vol. 393, pp. 42–50, 2020, doi: 10.1016/j.jcat.2020.11.010.
ITO, Shizuka, Xianwei WANG, Ammara WAHEED, Gao LI, Nobutaka MAEDA, Daniel Matthias MEIER, Shuichi NAITO und Alfons BAIKER, 2020. Support effects in iridium-catalyzed aerobic oxidation of benzyl alcohol studied by modulation-excitation attenuated total reflection IR spectroscopy. Journal of Catalysis. 2020. Bd. 393, S. 42–50. DOI 10.1016/j.jcat.2020.11.010
Ito, Shizuka, Xianwei Wang, Ammara Waheed, Gao Li, Nobutaka Maeda, Daniel Matthias Meier, Shuichi Naito, and Alfons Baiker. 2020. “Support Effects in Iridium-Catalyzed Aerobic Oxidation of Benzyl Alcohol Studied by Modulation-Excitation Attenuated Total Reflection IR Spectroscopy.” Journal of Catalysis 393: 42–50. https://doi.org/10.1016/j.jcat.2020.11.010.
Ito, Shizuka, et al. “Support Effects in Iridium-Catalyzed Aerobic Oxidation of Benzyl Alcohol Studied by Modulation-Excitation Attenuated Total Reflection IR Spectroscopy.” Journal of Catalysis, vol. 393, 2020, pp. 42–50, https://doi.org/10.1016/j.jcat.2020.11.010.


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