Several common alloys are used in catalysis, including:
Pt-Ru (Platinum-Ruthenium): Used in proton-exchange membrane fuel cells for the oxidation of hydrogen and methanol. Ni-Cu (Nickel-Copper): Employed in the hydrogenation of carbon monoxide to produce synthetic fuels. Pd-Ag (Palladium-Silver): Utilized in the selective hydrogenation of alkynes to alkenes.