Surface-binding-mediated growth of monodisperse cobalt-doped ceria nanocrystals

Peculiar surface–interface properties of nanocrystalline ceria–cobalt oxides with enhanced oxygen storage capacity

“…In a previous paper, we prepared ceria-cobalt oxides by surfactant-assisted hydrothermal synthesis and characterized the pristine powders. 23 Herein, we show peculiar surface-interface properties of calcined nanocrystalline ceria-cobalt oxides with enhanced oxygen storage capacity.…”

“…Pure and cobalt-doped ceria nanocrystals were synthesized by a convenient surfactant-assisted hydrothermal approach. 23 Briefly, 15 mL of toluene, which contained the metal oleate precursor, was transferred into a 50 mL Teflon-lined stainless-steel autoclave containing 15 mL of deionized water and 0.15 mL of t-butylamine. The sealed autoclave was transferred to a 180 1C oven, held there for 12 hours, and the autoclave was then allowed to naturally cool to room temperature.…”

“…Our previous paper revealed that the Co/(Co + Ce) atomic ratio in the synthesized sample was 0%, 6.3% and 14.3%. 23 For convenience, the corresponding samples are referred to as CeCo0, CeCo6 and CeCo14, respectively.…”

Synthesis of Tailor-Made Ceramic Nanocrystals by Organic Ligand-Assisted Hydrothermal Method

“…3 [1][2][3][4][5][6][7] in-situ At a low organic-ligand-molecules to CeO 2 precursor ratio, the preferential interaction of the ligand-molecules with the CeO 2 {001} planes slows the growth of {001} faces relative to {111} faces, which leads to the formation of nanocubes. (c) At a high organic-ligand-molecules to CeO 2 precursor ratio, ligand-molecules block growth on both {001} faces and {111} faces, which leads to the formation of truncated octahedra crystals.…”