“…Among various metals, nanosize palladium-based catalysts have attracted particular attention due to their special interaction with oxygen and high selectivity for water formation in a multielectron charge transfer process [8][9][10][11][12]. Some recent studies have reported that the combination of palladium with other metals, such as Ni [13][14][15], Fe [15], Sn [16], Rh [17] and Cu [18][19][20][21][22], synthesized by different methods, i.e., co-impregnation [15,18], colloidal synthesis [19], nanotubular mesoporous PdCu by galvanic replacement [20] and electrodeposition of PdCu [22], substantially improves the activity and stability of the alloys. This is attributed to the formation of bimetallic interactions which are stronger than a single metal-oxygen (M-O) interaction, thus generating a bimetallic material with greater stability.…”