Facet-Dependent Reactivity of Ceria Nanoparticles Exemplified by CeO2-Based Transition Metal Catalysts: A Critical Review

The rational design and fabrication of highly-active cost-efficient catalytic materials constitutes the main research pillar in catalysis field. In this context, fine-tuning size shape at nanometer scale can exert an intense impact not only on inherent reactivity catalyst’s counterparts but also their interfacial interactions; it opening up new horizons for development highly active robust materials. present critical review, focusing mainly our recent advances topic, aims to highlight pivotal role engineering catalysis, exemplified by noble metal-free, CeO2-based transition metal catalysts (TMs/CeO2). underlying mechanism facet-dependent is initially discussed. implications ceria nanoparticles’ (rods, cubes, polyhedra) are next discussed, ground some most pertinent heterogeneous reactions, such as CO2 hydrogenation, CO oxidation, N2O decomposition. It clearly revealed that functionalization remarkably affect intrinsic features turn nanoparticles. More importantly, combining nanoparticles (CeO2 NPs) specific architecture with various metals (e.g., Cu, Fe, Co, Ni) multifunctional composites be obtained due synergistic metalceria interactions. From practical point view, novel catalyst formulations similar or even superior co-adjusting composition mixed oxides, Cu/ceria nanorods oxidation Ni/ceria hydrogenation. conclusions derived could provide principles earth-abundant oxide real-life environmental energy applications.