Crystal‐Plane‐Controlled Surface Restructuring and Catalytic Performance of Oxide Nanocrystals

Crystal clear: Uniform Cu2O nanooctahedra (o-Cu2O) and nanocubes (c-Cu2O) undergo surface restructuring during CO oxidation for the in-situ formation of catalytically active CuO thin films to give CuO/o-Cu2O and CuO/c-Cu2O, respectively (see picture). The structure and catalytic performance of CuO thin films are controlled by the crystal plane exposed on the underlying Cu2O nanocrystals.