| Téléchargement | - Voir le manuscrit accepté : Size and composition for 1-5 nm Ø PtRu alloy nano-particles from CuKα X-ray patterns (PDF, 992 Kio)
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| DOI | Trouver le DOI : https://doi.org/10.1016/j.jallcom.2008.03.101 |
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| Auteur | Rechercher : Baranova, Elena A.1; Rechercher : Le Page, Yvon1; Rechercher : Ilin, Dimitri1; Rechercher : Bock, Christina1; Rechercher : MacDougall, Barry1; Rechercher : Mercier, Patrick H. J.1 |
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| Affiliation | - Conseil national de recherches du Canada. Institut de technologie des procédés chimiques et de l'environnement du CNRC
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| Format | Texte, Article |
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| Sujet | PtRu clusters; Nanostructured materials; Alloy; X-ray diffraction; Crystal structure |
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| Résumé | X-ray diffraction (XRD) studies on PtRu clusters with a range of diameters are reported. It is shown that for clusters smaller than 5 nm, Scherrer’s formula is not adequate for the simultaneous interpretation of the size and composition of the clusters from their diffraction patterns. The theoretically and computationally developed approach is based on Debye’s exact formula for scattering by randomly oriented molecules applied here to atomic models for the clusters. The novel approach interprets plausibly the same XRD patterns that Scherrer's formula could not. Pt₁₋x-Rux nano-particles are synthesized with a modified polyol method and their size and composition are found from the interpretation of Cu Kα diffraction patterns using Debye's formula. The obtained results are consistent with both the chemical information and with previously reported results from other methods of investigation. Experimental profiles are shown to be affected here by non-uniformity of particle sizes. |
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| Date de publication | 2008-05-20 |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro du CNRC | NRCC 52151 |
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| Numéro NPARC | 15329336 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 96588974-2ff3-4b81-ae62-4252c84d57e5 |
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| Enregistrement créé | 2010-05-19 |
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| Enregistrement modifié | 2020-04-15 |
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