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CRYSTALLIZATION OF NANOCERIA WITHIN A BORATE GLASSES

Abstract

A soluble borate glass doped with different concentrations of cerium (IV) oxide was used to create multivalent CeO2(Ce4+) and Ce2O3(Ce3+) nanoparticles. The glass is melted with varying cerium (IV) oxide and under different melting conditions to achieve varying quantities of Ce3+ and Ce4+ nanoparticles. Differential Thermal Analysis (DTA), Transmission Electron Microscopy (TEM), and Raman Spectroscopy were conducted to investigate the crystal growth of CeO2 and Ce2O3 nanocrystals and their structure. We have identified several crystal structures and the study shows crystal formation changes with the ratio of Ce3+/Ce4+ nanoparticles.

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