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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Alammar, Tarek
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (4/4 displayed)
- 2017Microwave-Assisted Synthesis of Perovskite SrSnO3 Nanocrystals in Ionic Liquids for Photocatalytic Applicationscitations
- 2015Ionic Liquid-Assisted Sonochemical Preparation of CeO2 Nanoparticles for CO Oxidationcitations
- 2015Energy efficient microwave synthesis of mesoporous Ce0.5M0.5O2 (Ti, Zr, Hf) nanoparticles for low temperature CO oxidation in an ionic liquid - a comparative studycitations
- 2015Low-temperature route to metal titanate perovskite nanoparticles for photocatalytic applicationscitations
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article
Ionic Liquid-Assisted Sonochemical Preparation of CeO2 Nanoparticles for CO Oxidation
Abstract
<p>CeO<sub>2</sub> nanoparticles were synthesized via a one-step ultrasound synthesis in different kinds of ionic liquids based on bis(trifluoromethanesulfonylamide, [Tf<sub>2</sub>N]<sup>-</sup>, in combination with various cations including 1-butyl-3-methylimidazolium ([C<sub>4</sub>mim]<sup>+</sup>), 1-ethyl-2,3-dimethylimidazolium ([Edimim]<sup>+</sup>), butyl-pyridinium([Py<sub>4</sub>]<sup>+</sup>), 1-butyl-1-methyl-pyrrolidinium ([Pyrr<sub>14</sub>]<sup>+</sup>), and 2-hydroxyethyl-trimethylammonium ([N<sub>1112</sub>OH]<sup>+</sup>). Depending on synthetic parameters, such as ionic liquid, Ce(IV) precursor, heating method, and precipitator, formed ceria exhibits different morphologies, varying from nanospheres, nanorods, nanoribbons, and nanoflowers. The morphology, crystallinity, and chemical composition of the obtained materials were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), energy dispersive X-ray spectroscopy (EDX), Raman spectroscopy, and N<sub>2</sub> adsorption. The structural and electronic properties of the as-prepared CeO<sub>2</sub> samples were probed by CO adsorption using IR spectroscopy under ultrahigh vacuum conditions. The catalytic activities of CeO<sub>2</sub> nanoparticles were investigated in the oxidation of CO. CeO<sub>2</sub> nanospheres obtained sonochemically in [C<sub>4</sub>mim][Tf<sub>2</sub>N] exhibit the best performance for low-temperature CO oxidation. The superior catalytic performance of this material can be related to its mesoporous structure, small particle size, large surface area, and high number of surface oxygen vacancy sites.</p>