Identification of descriptors for the CO interaction with metal nanoparticles.
The design and performance optimization of future nanocatalysts will depend on our understanding of adsorbate-metal interactions. Using first principle calculations, we identify suitable descriptors, namely, the coordination number and curvature angle of the surface Au atoms, capable of predicting the CO binding strength on every site of Au nanoparticles. Our results unravel how the size, shape, and symmetry of nanoparticles affect their electronic properties and, consequently, their interaction with CO. Importantly, these descriptors can be successfully applied to other metals using structural inputs from experiments and/or molecular modeling.
Department of Chemical Engineering and Center for Catalytic Science and Technology, University of Delaware, Newark, Delaware 19716, USA. gmpourmp@udel.edu
Giannis
G
Mpourmpakis
Antonis N
AN
Andriotis
Dionisios G
DG
Vlachos
D001665:Binding Sites; D002248:Carbon Monoxide / Q000737:chemistry*; D003198:Computer Simulation; D053768:Metal Nanoparticles / Q000737:chemistry*; D008956:Models, Chemical; D008958:Models, Molecular; D008968:Molecular Conformation
D002248:Carbon Monoxide