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SUPERFICI ED INTERFASI NANOSTRUTTURATE

Università degli Studi di Torino
Principal Investigator
Adriano ZECCHINA Università degli Studi di TORINO
Research Objectives
The manufacturing and synthesis of nano-structured materials (shortly "nano-technology") requires the use of physical and chemical techniques allowing the manipulation of matter atom by atom or cluster by cluster. Only in this way it is in fact possible to satisfactorily control the dimensions of the particles forming the wanted material, their shape, morphology and surface nano-structure.Due to the high ratio between the number of surface and bulk atoms in nano-structured materials, the physical and chemical phenomena at the interphase between different particles or domains (steric effects, effects due to chemical bonds, strains, bending or to atomic or, more in general, "nano-metric" impurities) and between the material and the liquid and/or gaseous surrounding (van der Waals interactions, chemical bonds formation, electric and photochemical effects) play a central role in determining the properties of complex materials characterized by extended interphasic surfaces, as schematically illustrated in the following Figure.
On this ground, a research program based on the preparation, nano-structural modification, characterization of the physico-chemical properties, and modelling of the of the surfaces and interphases of high surface area materials can represent an important challenge on the basic as well as on the applicative ground and requires a multidisciplinary approach involving the collaboration of experts in the areas of technology>>>