Palladium-based catalysts for electrochemical reduction of oxygen have received increasing
attention as potential replacement for platinum-based materials in the fuel cells. This Review
summarises the research conducted with nanostructured palladium catalysts, including thin
nanostructured films and Pd nanoparticles on various carbon and non-carbon supports. The
mechanism of oxygen reduction on palladium is described and the effect of the particle size
and shape on the electrocatalytic activity is emphasised. The role of the support material and …