Fig. 6: Ball-stick model for methanol and ethanol adsorption on copper and copper oxide surfaces.

a Cu(111), b pristine CuO(111) for interaction with the H atom, c pristine CuO(111) for interaction with the O atom, and d O-vacant CuO(111) for interaction with the O atom. The position of the VO is highlighted in green color. The binding energy is given in each case. The blue, gray, red, and black spheres represent the H, C, O, and Cu atoms, respectively.