Politecnico di Milano – Page 4

A proposal of AC corrosion mechanism in cathodic protection

Brenna A., Diamanti M.V., Lazzari L., Ormellese M., Politecnico di Milano, IT

The research proposes an electrochemical mechanism of AC-corrosion in CP condition. Electrochemical tests were carried out on carbon steel in simulated soil conditions to identify AC corrosion risk related parameters during cathodic polarization, like AC [...]

A comparative study over the photocatalytic activity of nanostructured TiO2 layers for air purifiers

Diamanti M.V., Del Curto B., Pedeferri MP., Cigada A., Politecnico di Milano, IT

The research presents an investigation over the efficiency of nanostructured TiO2 films as photocatalysts either in air purification systems or to be integrated in light devices, based on the exploitation of UV or Vis irradiation [...]

An experimental and theoretical study of the inhibition mechanism of organic substances in concrete

Diamanti M.V., Ormellese M., Perez-Rosales E.A., Pedeferri MP., Raffaini G., Ganazzoli F., Politecnico di Milano, IT

Corrosion inhibitors are one of the preventative techniques used to prevent chloride-induced corrosion in reinforced concrete structures. Several commercial inhibitors are available on the market, but their efficiency as well as their inhibitive mechanism are [...]

Rhodamine B degradation efficiency of differently annealed titanium dioxide nanotubes

Diamanti M.V., Stercal F., Pedeferri MP., Politecnico di Milano, IT

This paper presents an investigation over the photoefficiency of nanotubular titanium dioxide films in the degradation of organic pollutants: rhodamine B was chosen as model reactant. The effects of thermal treatments in several atmospheres on [...]

Key Success Factors in supporting Clean Tech start-ups: a general framework and an Italian experience

Salerno M., Lambkin A., Minola T., Politecnico di Milano, IT

The present seminal work is devoted to the generation of a framework useful to create the conditions for the incubation of Clean Tech startups, especially for research-based companies coming from the universities. In this direction [...]

Influence of pigments on the photoactivity of TiO2-containing colored mortars compared with white mortars and sol-gel TiO2 application route

Diamanti M.V., Del Curto B., Ormellese M., Pedeferri MP., Politecnico di Milano, IT

In previous works, TiO2-containing commercial mortars were proved to show photoactivated properties due to the well-known semiconducting structure of titanium dioxide in anatase form. Anatase was added to white mortars in form of suspension or [...]

Morphological variations on titanium by AC anodizing

Diamanti M.V., Ormellese M., Pedeferri MP., Politecnico di Milano, IT

Besides the widely investigated photoinduced properties of its oxides, a primary branch of application of anodized titanium is the production of biomedical implants, where a controlled roughness can lead to improvements in cell adhesion and [...]

Photoactivity of nitrogen-doped anodic TiO2 under UV and VIS light irradiation

Diamanti M.V., Ormellese M., Pedeferri M.P., Politecnico di Milano, IT

Titanium dioxide is probably the most efficient among the known photocatalysts, and undoubtedly the most studied one. An appealing route to tune obtain TiO2 films morphology and structure is to exploit the anodizing process to [...]

New nanostructured cellulose materials

Vismara E., Gastaldi G., Melone L., Cosentino C., Torri G., Politecnico di Milano, IT

Optimized synthesis of new cellulose-GMA materials via radical and physical chemical activation, their chemical composition determination and derivatization quantification. Structural solid state NMR and IR ATR characterizations. Derivative screenings for possible use in filtration of [...]

Photoactive and coloured anodic oxides on titanium for architectural and design applications

Diamanti M.V., Del Curto B., Ormellese M., Pedeferri MP., Politecnico di Milano, IT

Anodising processes can lead to the formation of oxides showing a wide range of interference colours with different hues and saturations depending on process parameters. The control of morphology, structure and homogeneity of the oxide [...]