Dr. Andrea Testino
Senior Scientist Chemical Processes and Materials
5232 Villigen PSI
The Nanopowders Synthesis & Characterization sub-group at the Paul Scherrer Institut was established by AT when he joined the Institute in 2011. The scientific focus of the group is on fundamental aspects of nanoparticles formation and characterization. The applied synthetic approaches are selected among those that allow the collecting of time-resolved experimental data and might be scaled to larger quantities. The investigation method has been applied for the preparation on nanomaterials as metals (such as Ni, Ag, Au, Pt), simple and complex metal oxides (such as CexZr(1-x)O2, perovskites, spinels), doped-metal oxide (such as noble metal doped CeO2), and sparingly soluble salts such as calcium carbonate, calcium silicate, calcium phosphate, and calcium aluminum sulfate hydrate. The detailed studies of the formation mechanism are based on the accurate collection of experimental data combined with the population balance modeling, and synchrotron-based in-situ investigation. The synthesis method were extended to the continuous preparation using the Segmented Flow Tubular Reactor (SFTR). This outstanding technology was conceived at EPFL in 1997, specifically to overcome problems (i.e., loss of quality) associated with the production of large quantities of nanomaterials. Today, a SFTR reactor capable of working at high temperature is in operation at PSI, specifically designed for metal and metal oxide nanoparticles production. The produced materials are used for several applied fields, from catalysis to biomedical devices. Ceramic synthesis, processing, and characterization is carried out in other two laboratories, mainly dedicated to industrial collaboration in the field of catalysis and ceramic biomedical devices. The scientific activity is summarized in about 70 contributions (h-index 29, >3700 citations) and 13 patents, some of them worldwide granted.
Available Master projects topics:
1. Synthesis and characterization of metallic nanoparticles for catalysis and medical applications
2. Investigation on calcium aluminate sulfate formation and the influence of polymeric additives
3. Synthesis and characterization of new materials for Na-batteries