Pd coated one-dimensional Ag nanostructures: Controllable architecture and their electrocatalytic performance for ethanol oxidation in alkaline media

One-dimensional (1D) metal-coated Pd structures are efficient catalysts for the ethanol electro-oxidation and promising strategy minimizing Pd-loading toward commercialization of direct fuel cells (DEFCs). Herein, decorated core-shell architectures a novel coating on Ag nanowires (PdAg-NWs) controllable by two-step polyol method based galvanic replacement reaction. The integration uniform shell with low concentration partial hollow structure onto 1D PdAg-NWs exhibits highest efficiency oxidation reaction (EOR) in alkaline solution. In comparison nanoparticles (PdNPs/C), PdAgNWs/C performes 11 times superior EOR activity, onset potential shifts 80 mV negatively. presence enhances absorption capacity molecules hydroxyl ions active sites, improves catalyst tolerance to CO-like intermediates, making them anodic DEFCs.