Abstract
CeriaBTC (CeO2-1,3,5-Benzenetricarboxylic acid) microstructures have been synthesized through hydrothermal methods. Field Emission Scanning Electron Microscopy (FE-SEM) micrographs and X-ray diffraction (XRD) data reveal that the ceria microstructure exhibit hexagonal rod-like structures with average diameters 1.9 ± 0.17 µm and length 5.7 ± 0.19 µm, synthesized at 130 °C for 72 h. Elevating the reaction temperature or duration leads to gradual morphological evolution in micromaterial shape and size (aspect ratio), stabilizing at 3.51. This signifies an ongoing chemical transformation driving morphological alteration. Fourier transform infrared spectroscopy (FT-IR) reveals the presence of an organic linker in the CeriaBTC microrods. Results from XRD, FE-SEM, FT-IR, and thermogravimetric analysis (TGA) suggest a chemical transformation from hexagonal type CeriaBTC to Ceria microrods at higher calcination temperatures of 400 °C for 4 h. The development of hierarchical morphologies, transitioning from hexagonal CeriaBTC rods to ceria microstructure powder, has been observed to rely on both the orientation of the organic precursor (1,3,5-Benzenetricarboxylic acid) and the specific calcination temperature applied.
Published Version
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