Correlating morphology and doping effects with the carbon monoxide catalytic activity of Zn doped CeO2 nanocrystals

Abstract

The effects of Zn-doping on CeO₂ nanocrystals were investigated for the catalytic oxidation of carbon monoxide (CO). Incorporating Zn²⁺ into CeO₂ nanocubes with an isotropic 3D structure can effectively regulate oxygen vacancy concentration, compared with CeO₂ nanorods showing an anisotropic one dimensional 1D structure. The catalytic activity was shown to be governed by a morphology-dependent doping effect.