Outer-nozzle type high shear agitation reactor for continuous synthesis of monodisperse ceria-zirconia nanocolloids

Abstract

To minimize nozzle cloggage during long time synthesis of nanocolloids, an Outer nozzle type Shear-Agitation Reactor (Outer SA Reactor) with unbranched flow channels was developed in this study. The Outer SA Reactor was employed to prepare ceria-zirconia solid solution (CZ) nanocolloids under the same conditions as the conventional Inner Nozzle SA Reactor. The CZ nanocolloids obtained from both reactors showed almost the same particle size (2.8 nm) and size distribution. The excellent nanocolloid synthesis capability of the Outer SA Reactor was because the regions with the highest turbulent energy were fully utilized for nucleation.