Università Cattolica del Sacro Cuore

Alloys at the nanoscale: fascinating structures and properties

Seminario  1 dicembre 2016
Aula: Sala Riunioni -  Ore: 12.00
Via Musei 41, Brescia

Alloys at the nanoscale: fascinating structures and properties

Prof. Luca GAVIOLI
Università Cattolica del Sacro Cuore

Prof. Riccardo FERRANDO
Chemistry and Industrial Chemistry Dept., University of Genoa, Italy

Alloy nanoparticles (often known as nanoalloys) are bi- or multi-component metallic particles in the size range between 1-100 nm [1]. Nanoalloys present a wide variety structures and properties, that make them suitable for many applications to catalysis, optics, magnetism and biomedicine. The practical use of nanoalloys has a very long history, which dates at least to the Roman age. However the precise characterization of their structures and properties is a recent achievement, mainly of the last two decades. Nanoalloys are now a lively research subject, with several aspects worthy of further investigation. After an overview of their main modern applications, we focus on the structural aspects of nanoalloys, showing how the interplay between atoms of different chemical species leads to the formation of many different types of structures. Examples concerning weakly miscible nanoalloys (AgCu, AgNi, AgCo, AuCo) and strongly miscible nanoalloys (AgPd, AuCu, PtCo) are treated.
[1] R. Ferrando, Structure and Properties of Nanoalloys, Elsevier, 2016, ISBN: 978-0-08- 100212-4.

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