A Novel Route Toward Fabrication of Twofold‐Shaped CeO₂ Dendrites

Abstract

Highly uniform twofold-shaped CeO 2 dendrites were successfully prepared in large quantities by using an approach that involves the thermal decomposition of the precursor. The precursor with an average size of 10 µm was prepared from the reaction of Ce(NH 4 ) 2 (NO 3 ) 6 with CO(NH 2 ) 2 at 160°C in a water/diethanolamine (DEA) complex solution. The influence of DEA on dendrite formation is discussed. The dendritic pattern of precursor is almost retained in the as-pre-

Formation Mechanism of the Slice and Rod-Like Cerium Dioxide Precursor Particles

“…The constitutional ratio of solvent (ratio of water to ethanol) can affect the shape and crystalline phase of the particles obviously [8] . Threefold shape CeO 2 dendrites have been prepared in water and TEA mixed solution [9] of cerium (III) nitrate hexahydrate (Ce(NO 3 ) 3 6H 2 O) and urea (CO(NH 2 ) 2 ); twofold shape particles have been obtained in water and DEA mixed solution [10] ; spindle-like particles have been gotten in pure water solution [11] . Daoli Zhao et al prepared spindle and bundle-like cerium carbonate hydroxide (CeOHCO 3 ) particles using a biomolecule-assisted homogenous precipitation method [12] .…”

Ionic Liquid – Assisted Synthesis and Characterization of Cerium Oxide Nanocubes for Degradation of Methylene Blue

“…The high oxygen storage capacity largely depends on exposed crystalline planes and surface-to-volume ratio of CeO 2 [3,4]. These unique abilities of CeO 2 have made it suitable for many catalytic oxidation processes [5][6][7][8][9][10][11][12][13][14][15][16]. Therefore, morphology-controlled synthesis of well-developed shapes and sizes inorganic materials is an important goal of modern materials chemistry.…”