| Autre titre | Study of the rhodium nanoparticles in ZrO2-CeO2 based catalytic materials using nano beam diffraction and high resolution TEM |
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| DOI | Trouver le DOI : https://doi.org/10.1017/S1431927610055789 |
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| Auteur | Rechercher : Jiang, Hongying; Rechercher : Chen, Jian1; Rechercher : Malac, Marek1 |
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| Affiliation | - Conseil national de recherches du Canada
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| Format | Texte, Article |
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| Conférence | Microscopy & Microanalysis 2010, August 1-5, 2010, Portland, Oregon |
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| Résumé | Rhodium is an essential component in three-way catalyst for NOₓ reduction and also one of the most expensive precious metals. Since mixed ZrO₂-CeO₂ (CZ) based oxides are widely regardedas Rh support due to the catalyst thermal stability and unique surface properties, extensive studies have been focused on the understanding of the chemical, textural and nano-structural properties of CZ based catalytic materials. As the dispersion and morphology of Rh in the Rh-CZ system has strong influence on the Rh-CZ catalyst activity, high resolution TEM (HRTEM) has been used to characterize dispersed Rh nanoparticles previously. However in the HRTEM, a particle structure and orientation can be determined only when it is oriented along low index zone axis parallel to the incident beam. Furthermore, high irradiation dose is needed in HRTEM. Nano-beam diffraction (NBD) gives a direct indication of the particle structure and orientation at doses significantly lower than HRTEM. NBD is insensitive to sample drift and the TEM labinstabilities. |
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| Date de publication | 2010-08-01 |
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| Maison d’édition | Cambridge University Press |
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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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| 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 | 258d4263-32e1-4c5a-84dd-b308c0fc694d |
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| Enregistrement créé | 2020-03-12 |
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| Enregistrement modifié | 2020-05-21 |
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