Synthesis of n-type Cu-doped ZnO Nanorods onto FTO by Electrodeposition Method and Study its Electrocatalytic Properties toward CO_2 Reduction

N-type copper-doped zinc oxide nanorods (czo nrs) were electrodeposited on fluorine-doped tin oxide (fto) substrates at low temperature. nanorod array morphology with wurtzite hexagonal structure was characterized by sem and xrd. xrd patterns show czo nrs growth along c-axis perpendicular to the plane of the glass substrate and cu^2+ ions substituted with zn^2+ ions and did not change the hexagonal wurtzite structure of the zno nanorods. edx spectra show the presence of cu in the sample. uv-vis spectra indicate optical band gap of zno narrow by cu doping. mott-schottky analysis reveals that prepared czo nrs has n-type conductivity. voltammetry analysis shows czo nrs have the electrocatalytic activity toward co_2 reduction.