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  In Operando GIXRD and XRR on Polycrystalline In52Pd48

Ivarsson, D. C. A., Neumann, M., Levin, A. A., Keilhauer, T., Wochner, P., & Armbrüster, M. (2014). In Operando GIXRD and XRR on Polycrystalline In52Pd48. Zeitschrift für anorganische und allgemeine Chemie, 640(15), 3065-3069. doi:10.1002/zaac.201400223.

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 Urheber:
Ivarsson, Dennis C. A.1, Autor           
Neumann, Matthias1, Autor           
Levin, Alexander A.1, Autor           
Keilhauer, Toni1, Autor           
Wochner, Peter2, Autor           
Armbrüster, Marc3, Autor           
Affiliations:
1Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863405              
2External Organizations, ou_persistent22              
3Marc Armbrüster, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863414              

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 Zusammenfassung: A combined approach of grazing incidence X-ray diffraction (GIXRD) and X-ray reflectivity (XRR) under in operando conditions on polycrystalline materials is presented. This approach allows tracking of material changes of amorphous or crystalline nature in the near-surface region. Crystalline phases formed in operando can be identified by X-ray diffraction, while by XRR measurements information about the thickness and the density of overlayers is obtained. The setup also allows collection of data generated with higher incident angles which permit a direct comparison of the changes close to the surface and in the bulk of the materials. Results for the composition In52Pd48 - a mixture of the intermetallic compounds InPd and In3Pd2 catalyzing the steam reforming of methanol - in reducing atmosphere and under methanol steam reforming (MSR) conditions are presented. InPd exhibits a dynamic behavior, reacting to changes in atmosphere and temperature. The combination of GIXRD and XRR proves to be a powerful tool to examine model catalysts under catalytically relevant conditions providing complementary information to other methods.

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Sprache(n): eng - English
 Datum: 2014-08-022014-08-02
 Publikationsstatus: Erschienen
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 Art der Begutachtung: -
 Identifikatoren: ISI: 000346189900005
DOI: 10.1002/zaac.201400223
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Titel: Zeitschrift für anorganische und allgemeine Chemie
  Andere : Journal of Inorganic and General Chemistry
  Andere : J. Inorg. Gen Chem.
  Kurztitel : Z. Anorg. Allg. Chem.
Genre der Quelle: Zeitschrift
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Affiliations:
Ort, Verlag, Ausgabe: Weinheim : Wiley-VCH
Seiten: - Band / Heft: 640 (15) Artikelnummer: - Start- / Endseite: 3065 - 3069 Identifikator: ISSN: 0044-2313
CoNE: https://pure.mpg.de/cone/journals/resource/954925453895