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- W2247274234 abstract "It is well known that a minor addition of rare earth oxides can provide a beneficial effect towards various catalytic reactions. Use of rare earth oxide in different applications could improve commercial productivity in an affordable way. Among the rare earth oxides, ZrO2, La2O3 and CeO2 are very interesting due to their various characteristics showing a large range of applications in organic reactions. The changes in the molecular properties of materials at the nano scale level greatly enhance their physical properties as well as chemical properties and activity. Due to the extremely small size of the particles, an increased surface area is provided to the reactant enabling more molecules to react at the same time, thereby speeding up the process. In this work, the enhancement in the catalytic activity of these nano structured rare earth oxides has been studied under different reaction conditions. Nano crystalline ZrO2, La2O3 and CeO2 samples were synthesized using precipitation method and optimum reaction conditions have been established; whereas the corresponding bulk samples were synthesized by combustion method. The identification of phase and crystalline size of synthesized oxides have been done by X-ray diffraction, the band gape of these three oxides in both the forms has been analyzed by UV absorbance and surface area has been determined by gas adsorption analysis (BET). Moreover their different properties and the activity of nano crystallite oxides have also been compared with their bulk counterparts. Even the activity of ZrO2 is also compared with the rare earth oxides La2O3 and CeO2." @default.
- W2247274234 created "2016-06-24" @default.
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- W2247274234 date "2013-11-01" @default.
- W2247274234 modified "2023-09-27" @default.
- W2247274234 title "Nano Crystallite ZrO<sub>2</sub>, La<sub>2</sub>O<sub>3 </sub>and CeO<sub>2</sub>: Synthesis, Characterization and their Properties" @default.
- W2247274234 doi "https://doi.org/10.4028/www.scientific.net/ssp.209.212" @default.
- W2247274234 hasPublicationYear "2013" @default.
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