Facet-dependent nonenzymatic glucose sensing properties of Cu2O cubes and octahedra

Cu2O cubes and octahedra which have different crystallographic facets have been used for the nonenzymatic glucose sensors. The electrode based on the Cu2O octahedra displays much higher sensitivity, wider linear range and lower detection limit than that of the cubes modified electrode, which could be attributed to the different atomic arrangements of the exposed surface.