Herein, a porous copper-ceria catalyst has been prepared by using the porous organic polymer-templated method. It shows a remarkable surface area (247m(2)g(-1)), a high pore volume (0.48cm(3)g(-1)), a high concentration of highly dispersed copper oxide on the ceria surface with copper content of up to 30% (molar ratio of metals) and excellent activity for CO oxidation. [GRAPHICS]