CNTs were uniformly and stably deposited on Ti plate via EPD.
Cu-Pd alloy was formed by potentiostatic coelectrodeposition on Ti/CNTs.
Ti/CNTs/Cu-Pd electrodes were applied for nitrate reduction.
Ti/CNTs/Cu5-Pd5 possessed the best electrocatalytic performance.
CNTs improved the electrocatalytic activity and stability of the alloy.