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- W3097515194 abstract "Ultrasmall ceria (CeO2) and metal-doped CeO2 nanoparticles in the sub-3 nm size regime were synthesized via a facile, single-step, liquid-phase thermal decomposition reaction in a monosurfactant medium, which plays the role of a solvent and coordination molecule. The nanoparticles were characterized by a combination of techniques including powder X-Ray diffraction, Raman spectroscopy, and high-resolution transmission electron microscopy, and their catalytic activity was tested for the CO oxidation reaction. The results show that all the materials are highly crystalline in the as-synthesized form and monodispersed with a near-spherical shape. N2 sorption studies and porosity analysis confirm that the prepared materials after thermal treatment at 450 °C possess a very high specific surface area, up to 240 m2 g–1, and additionally a hierarchical mesoporous structure. The CeO2 and doped-CeO2 particles demonstrate superior catalytic activity for the low-temperature CO oxidation. Among the different kinds of doping, the Cu–Co co-doped CeO2 nanoparticles are the most active for the CO oxidation (T50 ≈ 54 °C and Ea = 39.5 kJ mol–1) followed by the Cu and Sm-doped CeO2 ones." @default.
- W3097515194 created "2020-11-09" @default.
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- W3097515194 date "2020-10-16" @default.
- W3097515194 modified "2023-09-30" @default.
- W3097515194 title "Ultrasmall Metal-Doped CeO<sub>2</sub> Nanoparticles for Low-Temperature CO Oxidation" @default.
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- W3097515194 doi "https://doi.org/10.1021/acsanm.0c02090" @default.
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