Facile synthesis of hybrid hexagonal CeF3 nano-disks on CeO2 frustum pyramids

A hybrid architecture comprising two types of cerium compound nanoparticles is synthesized via a facile surfactant- and template-free hydrothermal process. The prepared hybrid materials show an unusual morphology with small hexagonal nano-disks dispersed on relatively larger frustum pyramids. Microscopic analyses identify the chemical composition of the nano-disks as CeF3 and the frustum pyramids as CeO2. Apart from absorption on the CeO2 supports, the CeF3 nano-disks are self-assembled as well to form ordered one-dimensional chain nanostructure. Such unique hybrid architecture may open an avenue for the scientific and technological application in the rapidly emerging catalytic field.

► Simple method was used to fabricate a hybrid CeF3/CeO2 system. ► Method is surfactant and template free. ► System shows a unique architecture of CeF3 nano-disks on CeO2 frustum pyramid. ► Hybrid architecture is promising for catalytic applications.