Mechanical stirring and synergistic effect of Pr3+/Pr4+ and Ce4+ in improving the low-temperature reducibility of Pr-doped ceria nanoparticles

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dc.contributor.author Mutinda, Samuel
dc.contributor.author Wang, Ruigang
dc.date.accessioned 2017-04-12T11:14:25Z
dc.date.available 2017-04-12T11:14:25Z
dc.date.issued 2017-04-12
dc.identifier.issn 2079-6226
dc.identifier.uri http://journals.jkuat.ac.ke/index.php/sri
dc.identifier.uri http://hdl.handle.net/123456789/2859
dc.description.abstract We report that shape/size-controlled high surface area CeO2 and Pr-doped CeO2 solid solution nanoparticles were synthesized using a facile hydrothermal method. The effect of mechanical stirring during the initial stage of synthesis on the shape/size control, phase homogeneity of mixed oxides, and reducibility of materials were investigated. The results indicate that a synergistic effect between Ce4+ and Pr3+/Pr4+ in the Pr-doped CeO2 nanoparticles facilitates oxygen mobility within the solid solution lattice structure hence improving the reducibility of doped ceria materials at lower temperature as compared to the pure CeO2. Characterization techniques that were employed in this study include Powder X-ray diffraction (XRD), Transmission Electron Microscopy (TEM), BET surface area and Hydrogen Temperature Programmed Reduction (H2-TPR). en_US
dc.language.iso en en_US
dc.publisher JKUAT en_US
dc.relation.ispartofseries Sustainable Research and Innovation Conference Proceedings;Volume 4, 3rd - 4th May 2012
dc.subject Hydrothermal synthesis en_US
dc.subject rare-earth oxides en_US
dc.subject shape/size control en_US
dc.subject reducibility en_US
dc.title Mechanical stirring and synergistic effect of Pr3+/Pr4+ and Ce4+ in improving the low-temperature reducibility of Pr-doped ceria nanoparticles en_US
dc.type Article en_US


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