| Alternative title | Electron microscopy study of CeOx–Pd/α-Al2O3 catalysts for methane dry reforming |
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| DOI | Resolve DOI: https://doi.org/10.1063/1.3115405 |
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| Author | Search for: Moreno, M. S.; Search for: Wang, F.1; Search for: Malac, M.1; Search for: Kasama, T.; Search for: Gigola, C. E.; Search for: Costilla, I.; Search for: Sanchez, M. D. |
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| Affiliation | - National Research Council of Canada. National Institute for Nanotechnology
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| Format | Text, Article |
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| Abstract | We have investigated the interaction between Pd and Ce in a (0.47 wt %) CeOₓ–Pd(1 wt %)/ α-Al₂O₃ catalyst that is used in the reforming reaction of CH₄ with CO₂. The freshly reduced catalyst was characterized by various electron microscopy techniques, such as elemental mapping, Z-contrast imaging, and electron energy-loss spectroscopy tounderstand the role of Ce on a microscopic scale. The high spatial resolution elemental mapping indicates that CeOₓ is located in close proximity of the palladium nanoparticles. High-resolution lattice images and energy-loss spectra obtained in the vicinity of the Pd particles show an anisotropic distribution of CeOₓ crystallites limited to the interface region between Pd and the substrate but not covering the surface of the Pd nanoparticles. Energy-loss near edge fine structure of Pd M edges reveals that the Pd nanoparticles are not oxidized. |
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| Publication date | 2009-04-23 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 21268178 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 5292c0d2-320d-4ef2-a775-16dda745a39a |
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| Record created | 2013-05-21 |
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| Record modified | 2020-04-16 |
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