Reactivity and Catalysis by Nanoalloys

We review the catalytic properties of alloy nanoparticles and nanostructures. The chemical and catalytic properties of supported alloyed metal nanoparticles are reviewed. Afterdescribing the theoretical methods used to predict the electronic structure of nanoalloys and the experimentalmethods used to characterize their geometrical structure both ex-situ and in-situ and underoperando conditions, we focus on the catalytic properties of these systems and the opportunities thatalloying provides to modulate them. Prototypical processes of key industrial relevance are used astest examples: catalytic pollution control as three-way catalysts and NOx decomposition, the Fischer-Tropsch process, reforming of alkanes, electrocatalysis, and new energy resources as fuel cells andhydrogen storage. The aim of the chapter is to describe the interplay of experimental and theoretical characterization and technological heterogeneous catalytic systems for multi-element metal catalysts.