Multicomponent (Ce, Cu, Ni) oxides with cage and core–shell structures: tunable fabrication and enhanced CO oxidation activity†
Abstract
Solvothermal synthesis of Cu2O cubes from Cu(OAc)2 in ethanol provided templates for tunable formation of novel multicomponent composites: hollow CeO2–Cu2O (1), core–shell NiO@Cu2O (2) and hollow CeO2–NiO–Cu2O (3). Composites 1–3 catalyze the oxidation of CO at a lower temperature than the parent Cu2O cubes.