Synthesis of Zirconia Colloids from Aqueous Salt Solutions |
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| Authors: | Kangtaek Lee Arun Sathyagal Peter W. Carr Alon V. McCormick |
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| Affiliation: | Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455;Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455 |
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| Abstract: | We monitor the synthesis of ZrO2 colloids from dissolved ZrOCl2·8H2O using quasi-elastic light scattering and cryo-transmission electron microscopy (cryo-TEM). We investigate the effects of both precursor salt concentration and pH on the final size distribution. We find that the initial pH plays the most important role in the final particle size and yield. These trends and cryo-TEM observations help elucidate the roles of nucleation, aggregation, and recrystallization. |
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