“…In this paper, we use a sustainable and simple method to prepare electrodeposited Cu-Ag bimetallic nanostructured catalysts from a choline chloride urea DES and for CO 2 RR. 52 We have prepared Cu and Cu-Ag nanostructures and rationally assessed how the introduction of silver changes the product selectivity and intrinsic activity toward CO 2 RR. We have used two different bath compositions and prepared different loadings to evaluate how small changes in surface morphology, size of the nanostructures, and composition affect the performance.…”