Properties of the ceria colloidal particles prepared by the solvothermal oxidation of cerium metal

Wet air oxidation of acetic acid over platinum catalysts supported on cerium-based materials: Influence of metal and oxide crystallite size

“…Our experiments show that the specific surface area of initial HSA 5 ceria (190 m 2 g −1 ) decreased to 45 m 2 g −1 and the crystallite size increased from 6 nm to 13 nm due to sintering during calcination at 800 • C. The same effect was observed for the ZrCePr compound even though the crystallites of this support were more agglomerated (i.e., lower measured BET values than those obtained by calculation with a model of cubic crystallites). These results are in accordance with literature data [37,38,43]. Table 2 also presents platinum dispersion values and Pt crystallite sizes calculated for all of the catalysts.…”

Cerium oxide nanoparticles prepared in self-assembled systems

“…The obtained ceria was found to exhibit type-IV isotherms (mesoporous surfaces) with BET pore diameter of 3.5 nm regardless of the solvent type or method of calcination (direct or pretreatment) [112]. Kobayashi et al [113] studied the effect of adding Pluronic 123 just before the calcination (i.e. after the ceria been synthesized).…”

Development of Ceria-Supported Ruthenium Catalysts Effective for Various Synthetic Reactions

“…In this chapter, the pore-structure control of CeO 2 prepared by coagulation of solvothermally synthesized ceria colloidal nanoparticles is described. High surface energy of colloidal nanoparticles induced a strong tendency to coagulate by the addition of alkaline solutions, and subsequent calcination produced CeO 2 powders with micro-or meso-pores originating from the voids between primary ceria nanoparticles [57]. The pore structure of CeO 2 powders was partly controlled by the selection of alkaline solutions [58].…”