In this project we describe the spectroscopic and electroanalytical properties of different hybrids materials based on silsesquioxanes organically modified. The specific objectives of this project can be summarized in three steps. In a first part, the nanocomposite octa-(3-chloropropyl)octa silsesquioxane organofunctionalized with tryazole, imidazole and a PAMAM dendrimer (G.0) groups should be prepared and characterized by different techniques such as: Infrared (FTIR), UV-Visible, X-Ray Diffraction (XRD), Nuclear Magnetic Resonance, (NMR solid state), Scanning and Transmission Electron Microscopy (SEM, TEM), and Thermoanalysis (TGA-DTA ). In a second step we intend to conduct a systematic study about the electrochemical properties of these materials after the formation of hybrid and metal hexacyanoferrates complexes, using mainly the cyclic voltammetry as technique and solid and graphite paste electrode as work electrode. In a third step, after optimization of the electrochemical system, we intend to test these materials as sensors for the determination of species of environmental and biological interest, employing especially square wave, differential pulse voltammetry or chronoamperometry techniques.
News published in Agência FAPESP Newsletter about the scholarship: