Formation Mechanism of Ceria Particles by Spray Pyrolysis

Abstract:

Ceria-based materials are widely used in industrial applications such as catalyst supports, catalysts and electrolytes. Various applications require different morphological particles. Spray pyrolysis (SP) is a well-known process for ceria particle fabrication because SP has the advantages of simple and continuous process. Although various studies have discussed the particle morphology formation of SP, some questions are still unclear. In order to solve these questions, this study investigates the morphology of ceria particles from various precursors using SP. By combining the experimental data of scanning electron microscopy, transmission electron microscopy and focused ion beam, the result suggests that the particle formation mechanism is highly correlated with factors of hydrophilic-hydrophobic properties of precursors. Therefore, the morphology mechanism of SP for the ceria particles is proposed .

• Periodical: Advanced Materials Research (Volumes 488-489)
• Pages: 169-174
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.488-489.169
• Online since: March 2012
• Authors: Shao Ju Shih, Jian Pu Huang, Yu Jen Chou
• Keywords: Ceria, Focused Ion Beam (FIB), Scanning Electron Microscope (SEM), Spray Pyrolysis, Transmission Electron Microscopy (TEM)

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